diff --git a/test/mocks/emssimulator/swm/activateNESw b/test/mocks/emssimulator/swm/activateNESw
index 67d233e..3531f16 100755
--- a/test/mocks/emssimulator/swm/activateNESw
+++ b/test/mocks/emssimulator/swm/activateNESw
@@ -1,117 +1,28 @@
-#!/usr/bin/python
+#!/usr/bin/python3
+#  ============LICENSE_START=======================================================
+#  ONAP - SO
+#  ================================================================================
+#  Copyright (C) 2020 Huawei Technologies Co., Ltd. All rights reserved.
+#  ================================================================================
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#  ============LICENSE_END=========================================================
 
 import sys
 import argparse
 import json
-import os
-import shutil
-import random
-import time
 
 import conf
-import ems_util
-
-
-def do_activate_sw(sw_version_to_be_activated, ne_info):
-    """
-    return err, reason
-    """
-
-    installed_sw = ne_info.get("installedSw", {})
-    if sw_version_to_be_activated in installed_sw:
-        target_sw_version = installed_sw[sw_version_to_be_activated]["version"]
-    else:
-        target_sw_version = sw_version_to_be_activated
-
-    sw_install_dir_in_ne = conf.PNF_SIMULATORS_DIR + '/' + ne_info['omIP'] + conf.PNF_SW_INSTALL_DIR
-    target_sw_dir = sw_install_dir_in_ne + '/' + target_sw_version
-    if not os.path.isdir(target_sw_dir):
-        return True, "SW to be activated does not install"
-
-    if "targetSwVersion" in ne_info:
-        if ne_info["targetSwVersion"] != target_sw_version:
-            return True, "Conflicted targetVersion with to be activated %s" % target_sw_version
-        del ne_info["targetSwVersion"]
-
-    old_sw_version = ne_info.get("oldSwVersion", "")
-
-    if target_sw_version != ne_info["currentSwVersion"]:
-        ne_info["oldSwVersion"] = ne_info["currentSwVersion"]
-        ne_info["currentSwVersion"] = target_sw_version
-        ne_info["status"] = conf.STATUS_ACTIVATING
-        ems_util.update_ne_info(ne_info)
-
-        if target_sw_version != old_sw_version:
-            old_sw_dir = sw_install_dir_in_ne + '/' + old_sw_version
-            if old_sw_version and os.path.isdir(old_sw_dir):
-                shutil.rmtree(old_sw_dir, ignore_errors=True)
-
-    old_cwd = os.getcwd()
-    os.chdir(sw_install_dir_in_ne)
-    if os.path.islink(conf.CURRENT_VERSION_DIR):
-        os.remove(conf.CURRENT_VERSION_DIR)
-    os.symlink(target_sw_version, conf.CURRENT_VERSION_DIR)
-    os.chdir(old_cwd)
-
-    if "downloadedSwLocation" in ne_info:
-        if os.path.isdir(ne_info["downloadedSwLocation"]):
-            shutil.rmtree(ne_info["downloadedSwLocation"], ignore_errors=True)
-        del ne_info["downloadedSwLocation"]
-
-    return False, None
-
-
-def generate_notification(activate_process_id, activate_status, sw_version, failure_reason):
-    notification = {
-        "objectClass": "EMSClass",
-        "objectInstance": "EMSInstance",
-        "notificationId": random.randint(1, conf.MAX_INT),
-        "eventTime": time.asctime(),
-        "systemDN": "emssimulator",
-        "notificationType": "notifyActivateNESwStatusChanged",
-        "activateProcessId": activate_process_id,
-        "activateOperationStatus": activate_status,
-        "swVersion": sw_version
-    }
-
-    if failure_reason:
-        notification["failureReason"] = failure_reason
-
-    return notification
-
-
-def activate_ne_sw(sw_version_to_be_activated, ne_id):
-    ne_info = ems_util.get_ne_info_from_db_by_id(ne_id)
-
-    activate_process_id = random.randint(1, conf.MAX_INT)
-    result = conf.REQ_SUCCESS
-    ret_value = {
-        "activateProcessId": activate_process_id,
-        "result": result
-    }
-
-    if not ne_info:
-        ret_value["result"] = conf.REQ_FAILURE
-        ret_value["reason"] = "Can not find NE %s" % ne_id
-        return ret_value
-
-    err, reason = do_activate_sw(sw_version_to_be_activated, ne_info)
-
-    if not err:
-        ne_info["status"] = conf.STATUS_ACTIVATED
-        ems_util.update_ne_info(ne_info)
-        activate_status = "NE_SWACTIVATION_SUCCESSFUL"
-    else:
-        ret_value["result"] = conf.REQ_FAILURE
-        ret_value["reason"] = reason
-
-        activate_status = "NE_SWACTIVATION_FAILED"
-
-    notification = generate_notification(activate_process_id, activate_status, sw_version_to_be_activated, reason)
-    ems_util.send_notification(notification, activate_process_id)
-
-    # for automated software management, there is no listOfStepNumbersAndDurations
-    return ret_value
+import activate_n_e_sw
 
 
 def main():
@@ -122,8 +33,8 @@
 
     args = parser.parse_args()
 
-    ret_value = activate_ne_sw(args.swVersionToBeActivated, args.neIdentifier)
-    print json.dumps(ret_value)
+    _, ret_value = activate_n_e_sw.activate(args.swVersionToBeActivated, args.neIdentifier)
+    print(json.dumps(ret_value))
 
     if ret_value["result"] == conf.REQ_SUCCESS:
         sys.exit(conf.RET_CODE_SUCCESS)
diff --git a/test/mocks/emssimulator/swm/activate_n_e_sw.py b/test/mocks/emssimulator/swm/activate_n_e_sw.py
new file mode 100644
index 0000000..26214fa
--- /dev/null
+++ b/test/mocks/emssimulator/swm/activate_n_e_sw.py
@@ -0,0 +1,141 @@
+#  ============LICENSE_START=======================================================
+#  ONAP - SO
+#  ================================================================================
+#  Copyright (C) 2020 Huawei Technologies Co., Ltd. All rights reserved.
+#  ================================================================================
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#  ============LICENSE_END=========================================================
+
+import os
+import logging
+import shutil
+import random
+import time
+
+import conf
+import ems_util
+
+
+OPERATION_NAME = "activateNESw"
+logging.basicConfig(level=logging.INFO, format=conf.LOGGER_FORMAT, filename=ems_util.get_log_file(OPERATION_NAME))
+logger = logging.getLogger(OPERATION_NAME)
+
+
+def do_activate(sw_version_to_be_activated, ne_info):
+    """
+    return err, reason
+    """
+
+    logger.info("swVersionToBeActivated: %s" % sw_version_to_be_activated)
+
+    installed_sw = ne_info.get("installedSw", {})
+    if sw_version_to_be_activated in installed_sw:
+        target_sw_version = installed_sw[sw_version_to_be_activated]["version"]
+    else:
+        target_sw_version = sw_version_to_be_activated
+
+    sw_install_dir_in_ne = ems_util.get_install_dir(ne_info['omIP'])
+    logger.info("SW has been installed at %s" % sw_install_dir_in_ne)
+
+    if "targetSwVersion" in ne_info:
+        if ne_info["targetSwVersion"] != target_sw_version:
+            msg = "Conflicted targetVersion with to be activated %s" % target_sw_version
+            logger.error(msg)
+            return True, msg
+        del ne_info["targetSwVersion"]
+
+    old_sw_version = ne_info.get("oldSwVersion", "")
+
+    if target_sw_version != ne_info["currentSwVersion"]:
+        ne_info["oldSwVersion"] = ne_info["currentSwVersion"]
+        ne_info["currentSwVersion"] = target_sw_version
+        ne_info["status"] = conf.STATUS_ACTIVATING
+        ems_util.update_ne_info(ne_info)
+
+        if target_sw_version != old_sw_version:
+            old_sw_dir = os.path.join(sw_install_dir_in_ne, old_sw_version)
+            if old_sw_version and os.path.isdir(old_sw_dir):
+                shutil.rmtree(old_sw_dir, ignore_errors=True)
+
+    old_cwd = os.getcwd()
+    os.chdir(sw_install_dir_in_ne)
+    if os.path.islink(conf.CURRENT_VERSION_DIR):
+        os.remove(conf.CURRENT_VERSION_DIR)
+    os.symlink(target_sw_version, conf.CURRENT_VERSION_DIR)
+    os.chdir(old_cwd)
+
+    if "downloadedSwLocation" in ne_info:
+        if os.path.isdir(ne_info["downloadedSwLocation"]):
+            shutil.rmtree(ne_info["downloadedSwLocation"], ignore_errors=True)
+        del ne_info["downloadedSwLocation"]
+
+    return False, None
+
+
+def generate_notification(activate_process_id, activate_status, sw_version, failure_reason):
+    notification = {
+        "objectClass": conf.OBJECT_CLASS,
+        "objectInstance": conf.OBJECT_INSTANCE,
+        "notificationId": random.randint(1, conf.MAX_INT),
+        "eventTime": time.asctime(),
+        "systemDN": conf.SYSTEM_DN,
+        "notificationType": "notifyActivateNESwStatusChanged",
+        "activateProcessId": activate_process_id,
+        "activateOperationStatus": activate_status,
+        "swVersion": sw_version
+    }
+
+    if failure_reason:
+        logger.error(failure_reason)
+        notification["failureReason"] = failure_reason
+
+    return notification
+
+
+def activate(sw_version_to_be_activated, ne_id):
+    ne_info = ems_util.get_ne_info_from_db_by_id(ne_id)
+
+    activate_process_id = random.randint(1, conf.MAX_INT)
+    result = conf.REQ_SUCCESS
+    ret_value = {
+        "activateProcessId": activate_process_id,
+        "result": result
+    }
+
+    if not ne_info:
+        ret_value["result"] = conf.REQ_FAILURE
+        ret_value["reason"] = "Can not find NE %s" % ne_id
+
+        logger.error(ret_value["reason"])
+        return ret_value
+
+    err, reason = do_activate(sw_version_to_be_activated, ne_info)
+
+    if not err:
+        ne_info["status"] = conf.STATUS_ACTIVATED
+        ems_util.update_ne_info(ne_info)
+
+        logger.info("Activate SW success")
+        activate_status = "NE_SWACTIVATION_SUCCESSFUL"
+    else:
+        ret_value["result"] = conf.REQ_FAILURE
+        ret_value["reason"] = reason
+
+        logger.error("Activate SW failure, reason: %s" % ret_value["reason"])
+        activate_status = "NE_SWACTIVATION_FAILED"
+
+    notification = generate_notification(activate_process_id, activate_status, sw_version_to_be_activated, reason)
+    ems_util.send_notification(notification, activate_process_id)
+
+    # for automated software management, there is no listOfStepNumbersAndDurations
+    return notification, ret_value
diff --git a/test/mocks/emssimulator/swm/conf.py b/test/mocks/emssimulator/swm/conf.py
index d7ba5b4..5aac383 100644
--- a/test/mocks/emssimulator/swm/conf.py
+++ b/test/mocks/emssimulator/swm/conf.py
@@ -1,22 +1,46 @@
-#!/usr/bin/python
+#  ============LICENSE_START=======================================================
+#  ONAP - SO
+#  ================================================================================
+#  Copyright (C) 2020 Huawei Technologies Co., Ltd. All rights reserved.
+#  ================================================================================
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#  ============LICENSE_END=========================================================
 
 import sys
+import os
 
 SWM_DIR = sys.path[0]
 
-NE_INFO_TABLE = SWM_DIR + "/ems_db/ne_info_table.json"
-SW_SERVER_SIMULATOR = SWM_DIR + "/sw_server_simulator"
-PNF_SIMULATORS_DIR = SWM_DIR + "/pnf_simulators"
-PNF_SW_DOWNLOAD_DIR = "/opt/download"
-PNF_SW_INSTALL_DIR = "/opt/install"
-PNF_SW_FALLBACK_DIR = "/opt/fallback"
+LOGGER_FORMAT = "[%(asctime)-15s] %(levelname)s [%(name)s]: %(message)s"
+LOGGER_FILE_DIR = os.path.join(SWM_DIR, "log")
+
+NE_INFO_TABLE = os.path.join(SWM_DIR, "ems_db", "ne_info_table.json")
+SW_SERVER_SIMULATOR = os.path.join(SWM_DIR, "sw_server_simulator")
+PNF_SIMULATORS_DIR = os.path.join(SWM_DIR, "pnf_simulators")
+COMMON_PATH = "opt"
+PNF_SW_DOWNLOAD_DIR = "download"
+PNF_SW_INSTALL_DIR = "install"
 MANIFEST_FILE = "manifest.json"
-INSTALLED_SW = "installed_sw.json"
+INSTALLED_SW_FILE = "installed_sw.json"
 CURRENT_VERSION_DIR = "current"
 NOTIFICATION_DIR = "/tmp"
 
 MAX_INT = (2**32) - 1
 
+OBJECT_CLASS = "NRCellDU"
+OBJECT_INSTANCE = "DC=com, SubNetwork=1, ManagedElement=123, GNBDUFunction=1, NRCellDU=1"
+SYSTEM_DN = "DC=com, SubNetwork=1, ManagedElement=123"
+
 STATUS_DOWNLOADING = "Downloading"
 STATUS_INSTALLING = "Installing"
 STATUS_ACTIVATING = "Activating"
@@ -34,4 +58,3 @@
 RESULT_SUCCESS = "Success"
 RESULT_FAILURE = "Failure"
 RESULT_PARTLY = "Partly successful"
-
diff --git a/test/mocks/emssimulator/swm/downloadNESw b/test/mocks/emssimulator/swm/downloadNESw
index 06a8d6b..9079448 100755
--- a/test/mocks/emssimulator/swm/downloadNESw
+++ b/test/mocks/emssimulator/swm/downloadNESw
@@ -1,134 +1,29 @@
-#!/usr/bin/python
+#!/usr/bin/python3
+#  ============LICENSE_START=======================================================
+#  ONAP - SO
+#  ================================================================================
+#  Copyright (C) 2020 Huawei Technologies Co., Ltd. All rights reserved.
+#  ================================================================================
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#  ============LICENSE_END=========================================================
 
 import sys
 import argparse
 import json
-import os
-import shutil
-import random
-import time
-import tempfile
 
 import conf
-import ems_util
-
-
-def do_download_sw(sw_info, sw_download_dir):
-    """
-    return err, reason, file_location_in_nes
-    """
-
-    sw_location = sw_info['swLocation']
-
-    # Use copy file from SW_SERVER_SIMULATOR to simulate download file
-    sw_file_name = sw_location.split('/')[-1]
-
-    file_location_in_server = conf.SW_SERVER_SIMULATOR + '/' + sw_file_name
-    file_location_in_ne = sw_download_dir + '/' + sw_file_name
-
-    try:
-        shutil.copy(file_location_in_server, sw_download_dir)
-    except IOError as e:
-        return True, "Download %s to %s error: %s" % (sw_file_name, sw_download_dir, str(e)), file_location_in_ne
-
-    return False, None, file_location_in_ne
-
-
-def generate_notification(download_process_id, download_status, downloaded_ne_sw_info, failed_sw_info):
-    notification = {
-        "objectClass": "EMSClass",
-        "objectInstance": "EMSInstance",
-        "notificationId": random.randint(1, conf.MAX_INT),
-        "eventTime": time.asctime(),
-        "systemDN": "emssimulator",
-        "notificationType": "notifyDownloadNESwStatusChanged",
-        "downloadProcessId": download_process_id,
-        "downloadOperationStatus": download_status
-    }
-
-    if downloaded_ne_sw_info:
-        notification["downloadedNESwInfo"] = downloaded_ne_sw_info
-
-    if failed_sw_info:
-        notification["failedSwInfo"] = failed_sw_info
-
-    return notification
-
-
-def download_ne_sw(sw_to_be_downloaded, ne_id):
-    ne_info = ems_util.get_ne_info_from_db_by_id(ne_id)
-
-    download_process_id = random.randint(1, conf.MAX_INT)
-    result = conf.REQ_SUCCESS
-    ret_value = {
-        "downloadProcessId": download_process_id,
-        "result": result
-    }
-
-    if not ne_info:
-        ret_value["result"] = conf.REQ_FAILURE
-        ret_value["reason"] = "Can not find NE %s" % ne_id
-        return ret_value
-
-    ne_info["status"] = conf.STATUS_DOWNLOADING
-    ems_util.update_ne_info(ne_info)
-
-    num_sw_to_be_downloaded = len(sw_to_be_downloaded)
-
-    downloaded_ne_sw_info = []
-    failed_sw_info = []
-
-    sw_download_parent_dir = conf.PNF_SIMULATORS_DIR + '/' + ne_info['omIP'] + conf.PNF_SW_DOWNLOAD_DIR
-    sw_download_dir = ne_info.get("downloadedSwLocation", "")
-    try:
-        if not os.path.isdir(sw_download_parent_dir):
-            os.makedirs(sw_download_parent_dir)
-
-        if sw_download_dir and not os.path.isdir(sw_download_dir):
-            os.makedirs(sw_download_dir)
-    except OSError as e:
-        ret_value["result"] = conf.REQ_FAILURE
-        ret_value["reason"] = str(e)
-        return ret_value
-
-    if not sw_download_dir:
-        sw_download_dir = tempfile.mkdtemp(dir=sw_download_parent_dir)
-
-    for sw_info in sw_to_be_downloaded:
-        err, reason, file_location = do_download_sw(sw_info, sw_download_dir)
-        if not err:
-            downloaded_ne_sw_info.append(file_location)
-        else:
-            result = conf.REQ_FAILURE
-            failed_sw_entry = {
-                "failedSw": file_location,
-                "failureReason": reason
-            }
-            failed_sw_info.append(failed_sw_entry)
-
-    num_downloaded_ne_sw = len(downloaded_ne_sw_info)
-
-    if num_downloaded_ne_sw == num_sw_to_be_downloaded:
-        download_status = "NE_SWDOWNLOAD_SUCCESSFUL"
-    elif num_downloaded_ne_sw == 0:
-        download_status = "NE_SWDOWNLOAD_FAILED"
-    else:
-        download_status = "NE_SWDOWNLOAD_PARTIALLY_SUCCESSFUL"
-
-    notification = generate_notification(download_process_id, download_status, downloaded_ne_sw_info, failed_sw_info)
-    ems_util.send_notification(notification, download_process_id)
-
-    if result == conf.REQ_SUCCESS:
-        ne_info["downloadedSwLocation"] = sw_download_dir
-        ems_util.update_ne_info(ne_info)
-    else:
-        shutil.rmtree(sw_download_dir, ignore_errors=True)
-
-        ret_value["result"] = result
-        ret_value["reason"] = json.dumps(failed_sw_info)
-
-    # for automated software management, there is no listOfStepNumbersAndDurations
-    return ret_value
+import download_n_e_sw
+import install_n_e_sw
 
 
 def main():
@@ -141,10 +36,35 @@
 
     sw_to_be_downloaded = json.loads(args.swToBeDownloaded)
 
-    ret_value = download_ne_sw(sw_to_be_downloaded, args.neIdentifier)
-    print json.dumps(ret_value)
+    all_installed_ne_sw_list = []
+    all_failed_sw_info = []
 
-    if ret_value["result"] == conf.REQ_SUCCESS:
+    download_notification, download_ret_value = download_n_e_sw.download(sw_to_be_downloaded, args.neIdentifier)
+
+    downloaded_ne_sw_list = download_notification.get("downloadedNESwInfo", [])
+    failed_downloaded_sw_list = download_notification.get("failedSwInfo", [])
+    all_failed_sw_info.extend(failed_downloaded_sw_list)
+
+    for downloaded_ne_sw in downloaded_ne_sw_list:
+        install_notification, _ = install_n_e_sw.install(downloaded_ne_sw, args.neIdentifier)
+        installed_ne_sw_list = install_notification.get("installedNESwInfo", [])
+        failed_installed_sw_list = install_notification.get("failedSwInfo", [])
+
+        all_installed_ne_sw_list.extend(installed_ne_sw_list)
+        all_failed_sw_info.extend(failed_installed_sw_list)
+
+    num_all_installed_ne_sw_list = len(all_installed_ne_sw_list)
+    num_sw_to_be_downloaded = len(sw_to_be_downloaded)
+
+    if num_all_installed_ne_sw_list == num_sw_to_be_downloaded:
+        download_ret_value["result"] = conf.REQ_SUCCESS
+    else:
+        download_ret_value["result"] = conf.REQ_FAILURE
+        download_ret_value["reason"] = "Failed downloaded or installed SW: %s" % json.dumps(all_failed_sw_info)
+
+    print(json.dumps(download_ret_value))
+
+    if download_ret_value["result"] == conf.REQ_SUCCESS:
         sys.exit(conf.RET_CODE_SUCCESS)
     else:
         sys.exit(conf.RET_CODE_FAILURE)
diff --git a/test/mocks/emssimulator/swm/download_n_e_sw.py b/test/mocks/emssimulator/swm/download_n_e_sw.py
new file mode 100644
index 0000000..05ae4bb
--- /dev/null
+++ b/test/mocks/emssimulator/swm/download_n_e_sw.py
@@ -0,0 +1,169 @@
+#  ============LICENSE_START=======================================================
+#  ONAP - SO
+#  ================================================================================
+#  Copyright (C) 2020 Huawei Technologies Co., Ltd. All rights reserved.
+#  ================================================================================
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#  ============LICENSE_END=========================================================
+
+import os
+import logging
+import json
+import shutil
+import random
+import time
+import tempfile
+
+import conf
+import ems_util
+
+
+OPERATION_NAME = "downloadNESw"
+logging.basicConfig(level=logging.INFO, format=conf.LOGGER_FORMAT, filename=ems_util.get_log_file(OPERATION_NAME))
+logger = logging.getLogger(OPERATION_NAME)
+
+
+def do_download(sw_info, sw_download_dir):
+    """
+    return err, reason, file_location_in_nes
+    """
+
+    sw_location = sw_info['swLocation']
+
+    logger.info("swLocationToBeDownloaded: %s" % sw_location)
+
+    # Use copy file from SW_SERVER_SIMULATOR to simulate download file
+    sw_file_name = sw_location.split('/')[-1]
+
+    file_location_in_server = os.path.join(conf.SW_SERVER_SIMULATOR, sw_file_name)
+    file_location_in_ne = os.path.join(sw_download_dir, sw_file_name)
+
+    try:
+        shutil.copy(file_location_in_server, sw_download_dir)
+    except IOError as e:
+        msg = "Download %s to %s error: %s" % (sw_file_name, sw_download_dir, str(e))
+        logger.error(msg)
+        return True, msg, file_location_in_ne
+
+    return False, None, file_location_in_ne
+
+
+def generate_notification(download_process_id, download_status, downloaded_ne_sw_info, failed_sw_info):
+    notification = {
+        "objectClass": conf.OBJECT_CLASS,
+        "objectInstance": conf.OBJECT_INSTANCE,
+        "notificationId": random.randint(1, conf.MAX_INT),
+        "eventTime": time.asctime(),
+        "systemDN": conf.SYSTEM_DN,
+        "notificationType": "notifyDownloadNESwStatusChanged",
+        "downloadProcessId": download_process_id,
+        "downloadOperationStatus": download_status
+    }
+
+    if downloaded_ne_sw_info:
+        notification["downloadedNESwInfo"] = downloaded_ne_sw_info
+
+    if failed_sw_info:
+        notification["failedSwInfo"] = failed_sw_info
+
+    return notification
+
+
+def download(sw_to_be_downloaded, ne_id):
+    ne_info = ems_util.get_ne_info_from_db_by_id(ne_id)
+
+    download_process_id = random.randint(1, conf.MAX_INT)
+    result = conf.REQ_SUCCESS
+    ret_value = {
+        "downloadProcessId": download_process_id,
+        "result": result
+    }
+
+    if not ne_info:
+        ret_value["result"] = conf.REQ_FAILURE
+        ret_value["reason"] = "Can not find NE %s" % ne_id
+
+        logger.error(ret_value["reason"])
+        return ret_value
+
+    ne_info["status"] = conf.STATUS_DOWNLOADING
+    ems_util.update_ne_info(ne_info)
+
+    num_sw_to_be_downloaded = len(sw_to_be_downloaded)
+
+    downloaded_ne_sw_info = []
+    failed_sw_info = []
+
+    sw_download_parent_dir = ems_util.get_download_dir(ne_info['omIP'])
+    logger.info("SW will be downloaded to %s" % sw_download_parent_dir)
+
+    sw_download_dir = ne_info.get("downloadedSwLocation", "")
+    try:
+        if not os.path.isdir(sw_download_parent_dir):
+            os.makedirs(sw_download_parent_dir)
+
+        if sw_download_dir and not os.path.isdir(sw_download_dir):
+            os.makedirs(sw_download_dir)
+    except OSError as e:
+        ret_value["result"] = conf.REQ_FAILURE
+        ret_value["reason"] = str(e)
+
+        logger.error(ret_value["reason"])
+        return ret_value
+
+    if not sw_download_dir:
+        sw_download_dir = tempfile.mkdtemp(dir=sw_download_parent_dir)
+
+    for sw_info in sw_to_be_downloaded:
+        err, reason, file_location = do_download(sw_info, sw_download_dir)
+        if not err:
+            logger.info("Downloaded SW file location: %s" % file_location)
+            downloaded_ne_sw_info.append(file_location)
+        else:
+            result = conf.REQ_FAILURE
+            failed_sw_entry = {
+                "failedSw": file_location,
+                "failureReason": reason
+            }
+
+            logger.error("Failed downloaded SW: %s" % str(failed_sw_entry))
+            failed_sw_info.append(failed_sw_entry)
+
+    num_downloaded_ne_sw = len(downloaded_ne_sw_info)
+
+    if num_downloaded_ne_sw == num_sw_to_be_downloaded:
+        download_status = "NE_SWDOWNLOAD_SUCCESSFUL"
+    elif num_downloaded_ne_sw == 0:
+        download_status = "NE_SWDOWNLOAD_FAILED"
+    else:
+        download_status = "NE_SWDOWNLOAD_PARTIALLY_SUCCESSFUL"
+    logger.info("Download SW status: %s" % download_status)
+
+    notification = generate_notification(download_process_id, download_status, downloaded_ne_sw_info, failed_sw_info)
+    ems_util.send_notification(notification, download_process_id)
+
+    if result == conf.REQ_SUCCESS:
+        ne_info["downloadedSwLocation"] = sw_download_dir
+        ems_util.update_ne_info(ne_info)
+
+        logger.info("Download SW success")
+    else:
+        shutil.rmtree(sw_download_dir, ignore_errors=True)
+
+        ret_value["result"] = result
+        ret_value["reason"] = json.dumps(failed_sw_info)
+
+        logger.info("Download SW failure, reason: %s" % ret_value["reason"])
+
+    # for automated software management, there is no listOfStepNumbersAndDurations
+    return notification, ret_value
diff --git a/test/mocks/emssimulator/swm/ems_db/ne_info_table.json b/test/mocks/emssimulator/swm/ems_db/ne_info_table.json
index eebabf9..5bf014f 100644
--- a/test/mocks/emssimulator/swm/ems_db/ne_info_table.json
+++ b/test/mocks/emssimulator/swm/ems_db/ne_info_table.json
@@ -7,12 +7,12 @@
     "currentSwVersion": "v1",
     "installedSw": {
       "ran_du_pkg2-v1": {
-        "installedLocation": "/home/ubuntu/swm/pnf_simulators/192.168.1.1/opt/install/v1/ran_du_pkg2",
+        "installedLocation": "/home/admin/swm/pnf_simulators/192.168.1.1/opt/install/v1/ran_du_pkg2",
         "version": "v1",
         "name": "ran_du_pkg2"
       },
       "ran_du_pkg1-v1": {
-        "installedLocation": "/home/ubuntu/swm/pnf_simulators/192.168.1.1/opt/install/v1/ran_du_pkg1",
+        "installedLocation": "/home/admin/swm/pnf_simulators/192.168.1.1/opt/install/v1/ran_du_pkg1",
         "version": "v1",
         "name": "ran_du_pkg1"
       }
@@ -27,12 +27,12 @@
     "currentSwVersion": "v2",
     "installedSw": {
       "ran_du_pkg1-v2": {
-        "installedLocation": "/home/ubuntu/swm/pnf_simulators/192.168.1.2/opt/install/v2/ran_du_pkg1",
+        "installedLocation": "/home/admin/swm/pnf_simulators/192.168.1.2/opt/install/v2/ran_du_pkg1",
         "version": "v2",
         "name": "ran_du_pkg1"
       },
       "ran_du_pkg2-v2": {
-        "installedLocation": "/home/ubuntu/swm/pnf_simulators/192.168.1.2/opt/install/v2/ran_du_pkg2",
+        "installedLocation": "/home/admin/swm/pnf_simulators/192.168.1.2/opt/install/v2/ran_du_pkg2",
         "version": "v2",
         "name": "ran_du_pkg2"
       }
diff --git a/test/mocks/emssimulator/swm/ems_util.py b/test/mocks/emssimulator/swm/ems_util.py
index 6d0d310..9bfb2cd 100644
--- a/test/mocks/emssimulator/swm/ems_util.py
+++ b/test/mocks/emssimulator/swm/ems_util.py
@@ -1,5 +1,22 @@
-#!/usr/bin/python
+#  ============LICENSE_START=======================================================
+#  ONAP - SO
+#  ================================================================================
+#  Copyright (C) 2020 Huawei Technologies Co., Ltd. All rights reserved.
+#  ================================================================================
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#  ============LICENSE_END=========================================================
 
+import os
 import time
 import json
 import jsonpath
@@ -7,6 +24,18 @@
 import conf
 
 
+def get_log_file(operation):
+    return os.path.join(conf.LOGGER_FILE_DIR, "%s.txt" % operation)
+
+
+def get_download_dir(om_ip):
+    return os.path.join(conf.PNF_SIMULATORS_DIR, om_ip, conf.COMMON_PATH, conf.PNF_SW_DOWNLOAD_DIR)
+
+
+def get_install_dir(om_ip):
+    return os.path.join(conf.PNF_SIMULATORS_DIR, om_ip, conf.COMMON_PATH, conf.PNF_SW_INSTALL_DIR)
+
+
 def get_ne_info_list_from_db(ne_filter):
     with open(conf.NE_INFO_TABLE) as f_ne_info:
         ne_info_table = json.load(f_ne_info)
@@ -47,7 +76,7 @@
 
 
 def send_notification(notification, process_id):
-    notification_file = conf.NOTIFICATION_DIR + '/%s-%d' % (notification['notificationType'], process_id)
+    notification_file = os.path.join(conf.NOTIFICATION_DIR, '%s-%d' % (notification['notificationType'], process_id))
 
     with open(notification_file, 'w') as f_notification:
         f_notification.write(json.dumps(notification))
diff --git a/test/mocks/emssimulator/swm/installNESw b/test/mocks/emssimulator/swm/installNESw
index 84e2fb9..e56f799 100755
--- a/test/mocks/emssimulator/swm/installNESw
+++ b/test/mocks/emssimulator/swm/installNESw
@@ -1,188 +1,28 @@
-#!/usr/bin/python
+#!/usr/bin/python3
+#  ============LICENSE_START=======================================================
+#  ONAP - SO
+#  ================================================================================
+#  Copyright (C) 2020 Huawei Technologies Co., Ltd. All rights reserved.
+#  ================================================================================
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#  ============LICENSE_END=========================================================
 
 import sys
 import argparse
 import json
-import os
-import shutil
-import random
-import time
-import tempfile
-import zipfile
 
 import conf
-import ems_util
-
-
-def do_install_sw(sw_to_be_installed, ne_info):
-    """
-    return err, reason, installed_ne_sw
-    """
-
-    sw_install_dir_in_ne = conf.PNF_SIMULATORS_DIR + '/' + ne_info['omIP'] + conf.PNF_SW_INSTALL_DIR
-
-    if sw_to_be_installed.startswith('/'):
-        file_location = sw_to_be_installed
-    else:
-        sw_download_dir_in_ne = ne_info.get("downloadedSwLocation", "")
-        file_location = sw_download_dir_in_ne + '/' + sw_to_be_installed
-
-    if not os.access(file_location, os.R_OK):
-        return True, "Missing to be installed SW file %s" % file_location, None
-
-    try:
-        if not os.path.isdir(sw_install_dir_in_ne):
-            os.makedirs(sw_install_dir_in_ne)
-    except OSError as e:
-        return True, str(e), None
-
-    temp_dir = tempfile.mkdtemp(dir=sw_install_dir_in_ne)
-    if file_location.endswith(".zip"):
-        with zipfile.ZipFile(file_location) as sw_zip:
-            sw_zip.extractall(temp_dir)
-    else:
-        return True, "Only support zip file", None
-
-    manifest_location = temp_dir + '/' + conf.MANIFEST_FILE
-    if os.access(manifest_location, os.R_OK):
-        with open(manifest_location) as f_manifest:
-            manifest = json.load(f_manifest)
-    else:
-        shutil.rmtree(temp_dir, ignore_errors=True)
-        return True, "Missing manifest file in %s" % file_location, None
-
-    try:
-        target_sw_name = manifest["name"]
-        target_sw_version = manifest["version"]
-    except KeyError as e:
-        shutil.rmtree(temp_dir, ignore_errors=True)
-        return True, "Missing key %s in %s of %s" % (str(e), conf.MANIFEST_FILE, file_location), None
-
-    if "targetSwVersion" in ne_info and ne_info["targetSwVersion"] != target_sw_version:
-        shutil.rmtree(temp_dir, ignore_errors=True)
-        return True, "Conflicted targetVersion for %s" % file_location, None
-
-    ne_info["targetSwVersion"] = target_sw_version
-    ems_util.update_ne_info(ne_info)
-
-    target_sw_parent_dir = sw_install_dir_in_ne + '/' + target_sw_version
-    try:
-        if not os.path.isdir(target_sw_parent_dir):
-            os.makedirs(target_sw_parent_dir)
-    except OSError as e:
-        shutil.rmtree(temp_dir, ignore_errors=True)
-        return True, str(e), None
-
-    target_sw_dir = target_sw_parent_dir + '/' + target_sw_name
-    if os.path.isdir(target_sw_dir):
-        shutil.rmtree(target_sw_dir, ignore_errors=True)
-
-    try:
-        shutil.move(temp_dir, target_sw_dir)
-    except shutil.Error as e:
-        shutil.rmtree(temp_dir, ignore_errors=True)
-        return True, str(e), None
-
-    installed_ne_sw = target_sw_name + '-' + target_sw_version
-
-    installed_sw_db = target_sw_parent_dir + '/' + conf.INSTALLED_SW
-    if os.path.isfile(installed_sw_db):
-        with open(installed_sw_db) as f_installed_sw:
-            installed_sw_table = json.load(f_installed_sw)
-        if not installed_sw_table:
-            installed_sw_table = {}
-    else:
-        installed_sw_table = {}
-
-    target_sw_info = {
-        "name": target_sw_name,
-        "version": target_sw_version,
-        "installedLocation": target_sw_dir
-    }
-    installed_sw_table[installed_ne_sw] = target_sw_info
-
-    with open(installed_sw_db, 'w') as f_installed_sw:
-        json.dump(installed_sw_table, f_installed_sw, indent=2)
-
-    ne_info["installedSw"] = installed_sw_table
-
-    return False, None, installed_ne_sw
-
-
-def generate_notification(install_process_id, install_status, installed_ne_sw_info, failed_sw_info):
-    notification = {
-        "objectClass": "EMSClass",
-        "objectInstance": "EMSInstance",
-        "notificationId": random.randint(1, conf.MAX_INT),
-        "eventTime": time.asctime(),
-        "systemDN": "emssimulator",
-        "notificationType": "notifyInstallNESwStatusChanged",
-        "installProcessId": install_process_id,
-        "installOperationStatus": install_status
-    }
-
-    if installed_ne_sw_info:
-        notification["installedNESwInfo"] = installed_ne_sw_info
-
-    if failed_sw_info:
-        notification["failedSwInfo"] = failed_sw_info
-
-    return notification
-
-
-def install_ne_sw(sw_to_be_installed, ne_id):
-    ne_info = ems_util.get_ne_info_from_db_by_id(ne_id)
-
-    install_process_id = random.randint(1, conf.MAX_INT)
-    result = conf.REQ_SUCCESS
-    ret_value = {
-        "installProcessId": install_process_id,
-        "result": result
-    }
-
-    if not ne_info:
-        ret_value["result"] = conf.REQ_FAILURE
-        ret_value["reason"] = "Can not find NE %s" % ne_id
-        return ret_value
-
-    ne_info["status"] = conf.STATUS_INSTALLING
-    ems_util.update_ne_info(ne_info)
-
-    installed_ne_sw_info = []
-    failed_sw_info = []
-
-    err, reason, installed_ne_sw = do_install_sw(sw_to_be_installed, ne_info)
-
-    if not err:
-        installed_ne_sw_info.append(installed_ne_sw)
-    else:
-        result = conf.REQ_FAILURE
-        failed_sw_entry = {
-            "failedSw": installed_ne_sw,
-            "failureReason": reason
-        }
-        failed_sw_info.append(failed_sw_entry)
-
-    num_installed_ne_sw = len(installed_ne_sw_info)
-
-    if num_installed_ne_sw == 1:
-        install_status = "NE_SWINSTALLATION_SUCCESSFUL"
-    elif num_installed_ne_sw == 0:
-        install_status = "NE_SWINSTALLATION_FAILED"
-    else:
-        install_status = "NE_SWINSTALLATION_PARTIALLY_SUCCESSFUL"
-
-    notification = generate_notification(install_process_id, install_status, installed_ne_sw_info, failed_sw_info)
-    ems_util.send_notification(notification, install_process_id)
-
-    if result == conf.REQ_SUCCESS:
-        ems_util.update_ne_info(ne_info)
-    else:
-        ret_value["result"] = result
-        ret_value["reason"] = json.dumps(failed_sw_info)
-
-    # for automated software management, there is no listOfStepNumbersAndDurations
-    return ret_value
+import install_n_e_sw
 
 
 def main():
@@ -193,8 +33,8 @@
 
     args = parser.parse_args()
 
-    ret_value = install_ne_sw(args.swToBeInstalled, args.neIdentifier)
-    print json.dumps(ret_value)
+    _, ret_value = install_n_e_sw.install(args.swToBeInstalled, args.neIdentifier)
+    print(json.dumps(ret_value))
 
     if ret_value["result"] == conf.REQ_SUCCESS:
         sys.exit(conf.RET_CODE_SUCCESS)
diff --git a/test/mocks/emssimulator/swm/install_n_e_sw.py b/test/mocks/emssimulator/swm/install_n_e_sw.py
new file mode 100644
index 0000000..57c59a3
--- /dev/null
+++ b/test/mocks/emssimulator/swm/install_n_e_sw.py
@@ -0,0 +1,234 @@
+#  ============LICENSE_START=======================================================
+#  ONAP - SO
+#  ================================================================================
+#  Copyright (C) 2020 Huawei Technologies Co., Ltd. All rights reserved.
+#  ================================================================================
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#  ============LICENSE_END=========================================================
+
+import os
+import logging
+import json
+import shutil
+import random
+import time
+import tempfile
+import zipfile
+
+import conf
+import ems_util
+
+
+OPERATION_NAME = "installNESw"
+logging.basicConfig(level=logging.INFO, format=conf.LOGGER_FORMAT, filename=ems_util.get_log_file(OPERATION_NAME))
+logger = logging.getLogger(OPERATION_NAME)
+
+
+def do_install(sw_to_be_installed, ne_info):
+    """
+    return err, reason, installed_ne_sw
+    """
+
+    logger.info("swToBeInstalled: %s" % sw_to_be_installed)
+
+    sw_install_dir_in_ne = ems_util.get_install_dir(ne_info['omIP'])
+
+    if sw_to_be_installed.startswith('/'):
+        file_location = sw_to_be_installed
+    else:
+        sw_download_dir_in_ne = ne_info.get("downloadedSwLocation", "")
+        file_location = os.path.join(sw_download_dir_in_ne, sw_to_be_installed)
+
+    if not os.access(file_location, os.R_OK):
+        msg = "Missing to be installed SW file %s" % file_location
+        logger.error(msg)
+        return True, msg, None
+
+    try:
+        if not os.path.isdir(sw_install_dir_in_ne):
+            os.makedirs(sw_install_dir_in_ne)
+    except OSError as e:
+        msg = str(e)
+        logger.error(msg)
+        return True, msg, None
+
+    temp_dir = tempfile.mkdtemp(dir=sw_install_dir_in_ne)
+    if file_location.endswith(".zip"):
+        with zipfile.ZipFile(file_location) as sw_zip:
+            sw_zip.extractall(temp_dir)
+    else:
+        msg = "Only support zip file"
+        logger.error(msg)
+        return True, msg, None
+
+    manifest_location = os.path.join(temp_dir, conf.MANIFEST_FILE)
+    if os.access(manifest_location, os.R_OK):
+        with open(manifest_location) as f_manifest:
+            manifest = json.load(f_manifest)
+    else:
+        shutil.rmtree(temp_dir, ignore_errors=True)
+        msg = "Missing manifest file in %s" % file_location
+        logger.error(msg)
+        return True, msg, None
+
+    try:
+        target_sw_name = manifest["name"]
+        target_sw_version = manifest["version"]
+    except KeyError as e:
+        shutil.rmtree(temp_dir, ignore_errors=True)
+        msg = "Missing key %s in %s of %s" % (str(e), conf.MANIFEST_FILE, file_location)
+        logger.error(msg)
+        return True, msg, None
+
+    if "targetSwVersion" in ne_info and ne_info["targetSwVersion"] != target_sw_version:
+        shutil.rmtree(temp_dir, ignore_errors=True)
+        msg = "Conflicted targetVersion for %s" % file_location
+        logger.error(msg)
+        return True, msg, None
+
+    ne_info["targetSwVersion"] = target_sw_version
+    ems_util.update_ne_info(ne_info)
+
+    target_sw_parent_dir = os.path.join(sw_install_dir_in_ne, target_sw_version)
+    try:
+        if not os.path.isdir(target_sw_parent_dir):
+            os.makedirs(target_sw_parent_dir)
+    except OSError as e:
+        shutil.rmtree(temp_dir, ignore_errors=True)
+        msg = str(e)
+        logger.error(msg)
+        return True, msg, None
+
+    target_sw_dir = os.path.join(target_sw_parent_dir, target_sw_name)
+    if os.path.isdir(target_sw_dir):
+        shutil.rmtree(target_sw_dir, ignore_errors=True)
+
+    try:
+        shutil.move(temp_dir, target_sw_dir)
+    except shutil.Error as e:
+        shutil.rmtree(temp_dir, ignore_errors=True)
+        msg = str(e)
+        logger.error(msg)
+        return True, msg, None
+    logger.info("Install SW to %s" % target_sw_dir)
+
+    installed_ne_sw = target_sw_name + '-' + target_sw_version
+    logger.info("Installed SW: %s" % installed_ne_sw)
+
+    installed_sw_db = os.path.join(target_sw_parent_dir, conf.INSTALLED_SW_FILE)
+    if os.path.isfile(installed_sw_db):
+        with open(installed_sw_db) as f_installed_sw:
+            installed_sw_table = json.load(f_installed_sw)
+        if not installed_sw_table:
+            installed_sw_table = {}
+    else:
+        installed_sw_table = {}
+
+    target_sw_info = {
+        "name": target_sw_name,
+        "version": target_sw_version,
+        "installedLocation": target_sw_dir
+    }
+    installed_sw_table[installed_ne_sw] = target_sw_info
+
+    with open(installed_sw_db, 'w') as f_installed_sw:
+        json.dump(installed_sw_table, f_installed_sw, indent=2)
+
+    ne_info["installedSw"] = installed_sw_table
+
+    return False, None, installed_ne_sw
+
+
+def generate_notification(install_process_id, install_status, installed_ne_sw_info, failed_sw_info):
+    notification = {
+        "objectClass": conf.OBJECT_CLASS,
+        "objectInstance": conf.OBJECT_INSTANCE,
+        "notificationId": random.randint(1, conf.MAX_INT),
+        "eventTime": time.asctime(),
+        "systemDN": conf.SYSTEM_DN,
+        "notificationType": "notifyInstallNESwStatusChanged",
+        "installProcessId": install_process_id,
+        "installOperationStatus": install_status
+    }
+
+    if installed_ne_sw_info:
+        notification["installedNESwInfo"] = installed_ne_sw_info
+
+    if failed_sw_info:
+        notification["failedSwInfo"] = failed_sw_info
+
+    return notification
+
+
+def install(sw_to_be_installed, ne_id):
+    ne_info = ems_util.get_ne_info_from_db_by_id(ne_id)
+
+    install_process_id = random.randint(1, conf.MAX_INT)
+    result = conf.REQ_SUCCESS
+    ret_value = {
+        "installProcessId": install_process_id,
+        "result": result
+    }
+
+    if not ne_info:
+        ret_value["result"] = conf.REQ_FAILURE
+        ret_value["reason"] = "Can not find NE %s" % ne_id
+
+        logger.error(ret_value["reason"])
+        return ret_value
+
+    ne_info["status"] = conf.STATUS_INSTALLING
+    ems_util.update_ne_info(ne_info)
+
+    installed_ne_sw_info = []
+    failed_sw_info = []
+
+    err, reason, installed_ne_sw = do_install(sw_to_be_installed, ne_info)
+
+    if not err:
+        installed_ne_sw_info.append(installed_ne_sw)
+    else:
+        result = conf.REQ_FAILURE
+        failed_sw_entry = {
+            "failedSw": installed_ne_sw,
+            "failureReason": reason
+        }
+
+        logger.error("Failed installed SW: %s" % str(failed_sw_entry))
+        failed_sw_info.append(failed_sw_entry)
+
+    num_installed_ne_sw = len(installed_ne_sw_info)
+
+    if num_installed_ne_sw == 1:
+        install_status = "NE_SWINSTALLATION_SUCCESSFUL"
+    elif num_installed_ne_sw == 0:
+        install_status = "NE_SWINSTALLATION_FAILED"
+    else:
+        install_status = "NE_SWINSTALLATION_PARTIALLY_SUCCESSFUL"
+    logger.info("Install SW status: %s" % install_status)
+
+    notification = generate_notification(install_process_id, install_status, installed_ne_sw_info, failed_sw_info)
+    ems_util.send_notification(notification, install_process_id)
+
+    if result == conf.REQ_SUCCESS:
+        ems_util.update_ne_info(ne_info)
+
+        logger.info("Install SW success")
+    else:
+        ret_value["result"] = result
+        ret_value["reason"] = json.dumps(failed_sw_info)
+
+        logger.info("Install SW failure, reason: %s" % ret_value["reason"])
+
+    # for automated software management, there is no listOfStepNumbersAndDurations
+    return notification, ret_value
diff --git a/test/mocks/emssimulator/swm/pnf_simulators/192.168.1.1/opt/install/v1/installed_sw.json b/test/mocks/emssimulator/swm/pnf_simulators/192.168.1.1/opt/install/v1/installed_sw.json
index 830c0e5..e7f13a5 100644
--- a/test/mocks/emssimulator/swm/pnf_simulators/192.168.1.1/opt/install/v1/installed_sw.json
+++ b/test/mocks/emssimulator/swm/pnf_simulators/192.168.1.1/opt/install/v1/installed_sw.json
@@ -1,11 +1,11 @@
 {
   "ran_du_pkg2-v1": {
-    "installedLocation": "/home/ubuntu/swm/pnf_simulators/192.168.1.1/opt/install/v1/ran_du_pkg2",
+    "installedLocation": "/home/admin/swm/pnf_simulators/192.168.1.1/opt/install/v1/ran_du_pkg2",
     "version": "v1",
     "name": "ran_du_pkg2"
   },
   "ran_du_pkg1-v1": {
-    "installedLocation": "/home/ubuntu/swm/pnf_simulators/192.168.1.1/opt/install/v1/ran_du_pkg1",
+    "installedLocation": "/home/admin/swm/pnf_simulators/192.168.1.1/opt/install/v1/ran_du_pkg1",
     "version": "v1",
     "name": "ran_du_pkg1"
   }
diff --git a/test/mocks/emssimulator/swm/pnf_simulators/192.168.1.2/opt/install/v1/installed_sw.json b/test/mocks/emssimulator/swm/pnf_simulators/192.168.1.2/opt/install/v1/installed_sw.json
index ae18314..bd63618 100644
--- a/test/mocks/emssimulator/swm/pnf_simulators/192.168.1.2/opt/install/v1/installed_sw.json
+++ b/test/mocks/emssimulator/swm/pnf_simulators/192.168.1.2/opt/install/v1/installed_sw.json
@@ -1,11 +1,11 @@
 {
   "ran_du_pkg2-v1": {
-    "installedLocation": "/home/ubuntu/swm/pnf_simulators/192.168.1.2/opt/install/v1/ran_du_pkg2",
+    "installedLocation": "/home/admin/swm/pnf_simulators/192.168.1.2/opt/install/v1/ran_du_pkg2",
     "version": "v1",
     "name": "ran_du_pkg2"
   },
   "ran_du_pkg1-v1": {
-    "installedLocation": "/home/ubuntu/swm/pnf_simulators/192.168.1.2/opt/install/v1/ran_du_pkg1",
+    "installedLocation": "/home/admin/swm/pnf_simulators/192.168.1.2/opt/install/v1/ran_du_pkg1",
     "version": "v1",
     "name": "ran_du_pkg1"
   }
diff --git a/test/mocks/emssimulator/swm/pnf_simulators/192.168.1.2/opt/install/v2/installed_sw.json b/test/mocks/emssimulator/swm/pnf_simulators/192.168.1.2/opt/install/v2/installed_sw.json
index 12c76a8..3fed183 100644
--- a/test/mocks/emssimulator/swm/pnf_simulators/192.168.1.2/opt/install/v2/installed_sw.json
+++ b/test/mocks/emssimulator/swm/pnf_simulators/192.168.1.2/opt/install/v2/installed_sw.json
@@ -1,11 +1,11 @@
 {
   "ran_du_pkg1-v2": {
-    "installedLocation": "/home/ubuntu/swm/pnf_simulators/192.168.1.2/opt/install/v2/ran_du_pkg1",
+    "installedLocation": "/home/admin/swm/pnf_simulators/192.168.1.2/opt/install/v2/ran_du_pkg1",
     "version": "v2",
     "name": "ran_du_pkg1"
   },
   "ran_du_pkg2-v2": {
-    "installedLocation": "/home/ubuntu/swm/pnf_simulators/192.168.1.2/opt/install/v2/ran_du_pkg2",
+    "installedLocation": "/home/admin/swm/pnf_simulators/192.168.1.2/opt/install/v2/ran_du_pkg2",
     "version": "v2",
     "name": "ran_du_pkg2"
   }
diff --git a/test/mocks/emssimulator/swm/swFallback b/test/mocks/emssimulator/swm/swFallback
index 9d6608c..506eee0 100755
--- a/test/mocks/emssimulator/swm/swFallback
+++ b/test/mocks/emssimulator/swm/swFallback
@@ -1,108 +1,29 @@
-#!/usr/bin/python
+#!/usr/bin/python3
+#  ============LICENSE_START=======================================================
+#  ONAP - SO
+#  ================================================================================
+#  Copyright (C) 2020 Huawei Technologies Co., Ltd. All rights reserved.
+#  ================================================================================
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#  ============LICENSE_END=========================================================
 
+import sys
 import argparse
 import json
-import sys
-import os
-import shutil
 
 import conf
 import ems_util
-
-
-def sw_fallback(ne_info_list):
-    ne_list = []
-    num_failure = 0
-
-    for ne_info in ne_info_list:
-        if ne_info.get("status") == conf.STATUS_DOWNLOADING:
-            ne_info["status"] = conf.STATUS_ACTIVATED
-            ems_util.update_ne_info(ne_info)
-
-            ne_entry = {
-                "nEIdentification": ne_info["nEIdentification"],
-                "swFallbackStatus": "fallbackSuccessful"
-            }
-            ne_list.append(ne_entry)
-            continue
-
-        sw_install_dir_in_ne = conf.PNF_SIMULATORS_DIR + '/' + ne_info['omIP'] + conf.PNF_SW_INSTALL_DIR
-
-        if ne_info.get("status") == conf.STATUS_INSTALLING:
-            old_sw_version = ne_info.get("currentSwVersion", "")
-            current_sw_version = ne_info.get("targetSwVersion", "")
-        else:
-            old_sw_version = ne_info.get("oldSwVersion", "")
-            current_sw_version = ne_info.get("currentSwVersion", "")
-
-        old_sw_dir = sw_install_dir_in_ne + '/' + old_sw_version
-
-        if not old_sw_version or not os.path.isdir(old_sw_dir):
-            ne_entry = {
-                "nEIdentification": ne_info["nEIdentification"],
-                "swFallbackStatus": "fallbackUnsuccessful"
-            }
-            ne_list.append(ne_entry)
-
-            num_failure += 1
-            continue
-
-        current_sw_dir = sw_install_dir_in_ne + '/' + current_sw_version
-
-        if current_sw_version and os.path.isdir(current_sw_dir) and current_sw_dir != old_sw_dir:
-            shutil.rmtree(current_sw_dir, ignore_errors=True)
-
-        old_cwd = os.getcwd()
-        os.chdir(sw_install_dir_in_ne)
-        if os.path.islink(conf.CURRENT_VERSION_DIR):
-            os.remove(conf.CURRENT_VERSION_DIR)
-        os.symlink(old_sw_version, conf.CURRENT_VERSION_DIR)
-        os.chdir(old_cwd)
-
-        installed_sw_db = old_sw_dir + '/' + conf.INSTALLED_SW
-        if os.path.isfile(installed_sw_db):
-            with open(installed_sw_db) as f_installed_sw:
-                installed_sw_table = json.load(f_installed_sw)
-            if not installed_sw_table:
-                installed_sw_table = {}
-        else:
-            installed_sw_table = {}
-
-        ne_info["installedSw"] = installed_sw_table
-        if "oldSwVersion" in ne_info:
-            ne_info["currentSwVersion"] = ne_info["oldSwVersion"]
-            del ne_info["oldSwVersion"]
-
-        if "targetSwVersion" in ne_info:
-            del ne_info["targetSwVersion"]
-
-        if "downloadedSwLocation" in ne_info:
-            if os.path.isdir(ne_info["downloadedSwLocation"]):
-                shutil.rmtree(ne_info["downloadedSwLocation"], ignore_errors=True)
-            del ne_info["downloadedSwLocation"]
-
-        ne_info["status"] = conf.STATUS_ACTIVATED
-        ems_util.update_ne_info(ne_info)
-
-        ne_entry = {
-            "nEIdentification": ne_info["nEIdentification"],
-            "swFallbackStatus": "fallbackSuccessful"
-        }
-        ne_list.append(ne_entry)
-
-    if num_failure == 0:
-        result = conf.RESULT_SUCCESS
-    elif num_failure == len(ne_info_list):
-        result = conf.RESULT_FAILURE
-    else:
-        result = conf.RESULT_PARTLY
-
-    ret_value = {
-        "nEList": ne_list,
-        "result": result
-    }
-
-    return ret_value
+import sw_fallback
 
 
 def main():
@@ -114,8 +35,8 @@
 
     ne_info_list = ems_util.get_ne_info_list_from_db(args.filter)
 
-    ret_value = sw_fallback(ne_info_list)
-    print json.dumps(ret_value)
+    ret_value = sw_fallback.fallback(ne_info_list)
+    print(json.dumps(ret_value))
 
     if ret_value["result"] == conf.RESULT_SUCCESS:
         sys.exit(conf.RET_CODE_SUCCESS)
diff --git a/test/mocks/emssimulator/swm/sw_fallback.py b/test/mocks/emssimulator/swm/sw_fallback.py
new file mode 100644
index 0000000..3037d45
--- /dev/null
+++ b/test/mocks/emssimulator/swm/sw_fallback.py
@@ -0,0 +1,129 @@
+#  ============LICENSE_START=======================================================
+#  ONAP - SO
+#  ================================================================================
+#  Copyright (C) 2020 Huawei Technologies Co., Ltd. All rights reserved.
+#  ================================================================================
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#  ============LICENSE_END=========================================================
+
+import os
+import logging
+import json
+import shutil
+
+import conf
+import ems_util
+
+
+OPERATION_NAME = "swFallback"
+logging.basicConfig(level=logging.INFO, format=conf.LOGGER_FORMAT, filename=ems_util.get_log_file(OPERATION_NAME))
+logger = logging.getLogger(OPERATION_NAME)
+
+
+def fallback(ne_info_list):
+    logger.info("NE info list: %s" % ne_info_list)
+
+    ne_list = []
+    num_failure = 0
+
+    for ne_info in ne_info_list:
+        if ne_info.get("status") == conf.STATUS_DOWNLOADING:
+            ne_info["status"] = conf.STATUS_ACTIVATED
+            ems_util.update_ne_info(ne_info)
+
+            ne_entry = {
+                "nEIdentification": ne_info["nEIdentification"],
+                "swFallbackStatus": "fallbackSuccessful"
+            }
+            ne_list.append(ne_entry)
+            continue
+
+        sw_install_dir_in_ne = ems_util.get_install_dir(ne_info['omIP'])
+
+        if ne_info.get("status") == conf.STATUS_INSTALLING:
+            old_sw_version = ne_info.get("currentSwVersion", "")
+            current_sw_version = ne_info.get("targetSwVersion", "")
+        else:
+            old_sw_version = ne_info.get("oldSwVersion", "")
+            current_sw_version = ne_info.get("currentSwVersion", "")
+
+        old_sw_dir = os.path.join(sw_install_dir_in_ne, old_sw_version)
+
+        if not old_sw_version or not os.path.isdir(old_sw_dir):
+            ne_entry = {
+                "nEIdentification": ne_info["nEIdentification"],
+                "swFallbackStatus": "fallbackUnsuccessful"
+            }
+            logger.error("oldSwVersion (%s) or oldSwDirectory (%s) is none" % (old_sw_version, old_sw_dir))
+            ne_list.append(ne_entry)
+
+            num_failure += 1
+            continue
+
+        current_sw_dir = os.path.join(sw_install_dir_in_ne, current_sw_version)
+
+        if current_sw_version and os.path.isdir(current_sw_dir) and current_sw_dir != old_sw_dir:
+            shutil.rmtree(current_sw_dir, ignore_errors=True)
+
+        old_cwd = os.getcwd()
+        os.chdir(sw_install_dir_in_ne)
+        if os.path.islink(conf.CURRENT_VERSION_DIR):
+            os.remove(conf.CURRENT_VERSION_DIR)
+        os.symlink(old_sw_version, conf.CURRENT_VERSION_DIR)
+        os.chdir(old_cwd)
+
+        installed_sw_db = os.path.join(old_sw_dir, conf.INSTALLED_SW_FILE)
+        if os.path.isfile(installed_sw_db):
+            with open(installed_sw_db) as f_installed_sw:
+                installed_sw_table = json.load(f_installed_sw)
+            if not installed_sw_table:
+                installed_sw_table = {}
+        else:
+            installed_sw_table = {}
+
+        ne_info["installedSw"] = installed_sw_table
+        if "oldSwVersion" in ne_info:
+            ne_info["currentSwVersion"] = ne_info["oldSwVersion"]
+            del ne_info["oldSwVersion"]
+
+        if "targetSwVersion" in ne_info:
+            del ne_info["targetSwVersion"]
+
+        if "downloadedSwLocation" in ne_info:
+            if os.path.isdir(ne_info["downloadedSwLocation"]):
+                shutil.rmtree(ne_info["downloadedSwLocation"], ignore_errors=True)
+            del ne_info["downloadedSwLocation"]
+
+        ne_info["status"] = conf.STATUS_ACTIVATED
+        ems_util.update_ne_info(ne_info)
+
+        ne_entry = {
+            "nEIdentification": ne_info["nEIdentification"],
+            "swFallbackStatus": "fallbackSuccessful"
+        }
+        ne_list.append(ne_entry)
+
+    if num_failure == 0:
+        result = conf.RESULT_SUCCESS
+    elif num_failure == len(ne_info_list):
+        result = conf.RESULT_FAILURE
+    else:
+        result = conf.RESULT_PARTLY
+    logger.info("Fallback SW result: %s" % result)
+
+    ret_value = {
+        "nEList": ne_list,
+        "result": result
+    }
+
+    return ret_value
diff --git a/test/mocks/emssimulator/swm/upgrade-post-check b/test/mocks/emssimulator/swm/upgrade-post-check
index 799afbc..e5dfae5 100755
--- a/test/mocks/emssimulator/swm/upgrade-post-check
+++ b/test/mocks/emssimulator/swm/upgrade-post-check
@@ -1,74 +1,52 @@
-#!/usr/bin/python
+#!/usr/bin/python3
+#  ============LICENSE_START=======================================================
+#  ONAP - SO
+#  ================================================================================
+#  Copyright (C) 2020 Huawei Technologies Co., Ltd. All rights reserved.
+#  ================================================================================
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#  ============LICENSE_END=========================================================
 
 import sys
 import json
 
 import conf
-import ems_util
-
-
-def upgrade_postcheck(pnf_id, old_sw_version, target_sw_version, rule_name, tmp_file=None):
-    ne_info = ems_util.get_ne_info_from_db_by_id(pnf_id)
-
-    if not ne_info:
-        ret_value = {
-            "result": conf.RESULT_FAILURE,
-            "reason": "Can not find NE %s" % pnf_id
-        }
-        return ret_value
-
-    old_sw_version_in_db = ne_info.get("oldSwVersion", "")
-    current_sw_version_in_db = ne_info.get("currentSwVersion", "")
-
-    if old_sw_version != old_sw_version_in_db:
-        ret_value = {
-            "result": conf.RESULT_FAILURE,
-            "reason": "Old SW version %s in PNF is not matched with oldSwVersion %s" %
-                      (old_sw_version_in_db, old_sw_version)
-        }
-        return ret_value
-
-    if target_sw_version != current_sw_version_in_db:
-        ret_value = {
-            "result": conf.RESULT_FAILURE,
-            "reason": "Current SW version %s in PNF is not matched with targetSwVersion %s" %
-                      (current_sw_version_in_db, target_sw_version)
-        }
-        return ret_value
-
-    ne_info["checkStatus"] = conf.STATUS_POSTCHECKED
-    ems_util.update_ne_info(ne_info)
-
-    ret_value = {
-         "result": conf.RESULT_SUCCESS
-    }
-
-    return ret_value
+import upgrade_post_check
 
 
 def main():
-    #  {{pnfId}} {{oldSwVersion}} {{targetSwVersion}} {{ruleName}} /tmp/tmp-{{Id}}
+    # {{pnfName}} {{oldSwVersion}} {{targetSwVersion}} {{ruleName}} {{additionalDataFile}}
 
     if len(sys.argv) < 5:
         ret_value = {
             "result": conf.RESULT_FAILURE,
             "reason": "Missing parameters"
         }
-        print json.dumps(ret_value)
+        print(json.dumps(ret_value))
         sys.exit(conf.RET_CODE_FAILURE)
-
-    if len(sys.argv) >= 5:
-        pnf_id = sys.argv[1]
+    else:
+        pnf_name = sys.argv[1]
         old_sw_version = sys.argv[2]
         target_sw_version = sys.argv[3]
         rule_name = sys.argv[4]
-        tmp_file = None
+        additional_data_file = None
 
     if len(sys.argv) >= 6:
-        tmp_file = sys.argv[5]
+        additional_data_file = sys.argv[5]
 
-    ret_value = upgrade_postcheck(pnf_id, old_sw_version, target_sw_version, rule_name, tmp_file)
-    print json.dumps(ret_value)
+    ret_value = upgrade_post_check.post_check(
+        pnf_name, old_sw_version, target_sw_version, rule_name, additional_data_file)
+    print(json.dumps(ret_value))
 
     if ret_value["result"] == conf.RESULT_SUCCESS:
         sys.exit(conf.RET_CODE_SUCCESS)
diff --git a/test/mocks/emssimulator/swm/upgrade-pre-check b/test/mocks/emssimulator/swm/upgrade-pre-check
index 6bf867f..5b0726b 100755
--- a/test/mocks/emssimulator/swm/upgrade-pre-check
+++ b/test/mocks/emssimulator/swm/upgrade-pre-check
@@ -1,65 +1,52 @@
-#!/usr/bin/python
+#!/usr/bin/python3
+#  ============LICENSE_START=======================================================
+#  ONAP - SO
+#  ================================================================================
+#  Copyright (C) 2020 Huawei Technologies Co., Ltd. All rights reserved.
+#  ================================================================================
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#  ============LICENSE_END=========================================================
 
 import sys
 import json
 
 import conf
-import ems_util
-
-
-def upgrade_precheck(pnf_id, old_sw_version, target_sw_version, rule_name, tmp_file=None):
-    ne_info = ems_util.get_ne_info_from_db_by_id(pnf_id)
-
-    if not ne_info:
-        ret_value = {
-            "result": conf.RESULT_FAILURE,
-            "reason": "Can not find NE %s" % pnf_id
-        }
-        return ret_value
-
-    current_sw_version_in_db = ne_info.get("currentSwVersion", "")
-
-    if old_sw_version != current_sw_version_in_db:
-        ret_value = {
-            "result": conf.RESULT_FAILURE,
-            "reason": "Current SW version %s in PNF is not matched with oldSwVersion %s" %
-                      (current_sw_version_in_db, old_sw_version)
-        }
-        return ret_value
-
-    ne_info["checkStatus"] = conf.STATUS_PRECHECKED
-    ems_util.update_ne_info(ne_info)
-
-    ret_value = {
-         "result": conf.RESULT_SUCCESS
-    }
-
-    return ret_value
+import upgrade_pre_check
 
 
 def main():
-    #  {{pnfId}} {{oldSwVersion}} {{targetSwVersion}} {{ruleName}} /tmp/tmp-{{Id}}
+    # {{pnfName}} {{oldSwVersion}} {{targetSwVersion}} {{ruleName}} {{additionalDataFile}}
 
     if len(sys.argv) < 5:
         ret_value = {
             "result": conf.RESULT_FAILURE,
             "reason": "Missing parameters"
         }
-        print json.dumps(ret_value)
+        print(json.dumps(ret_value))
         sys.exit(conf.RET_CODE_FAILURE)
-
-    if len(sys.argv) >= 5:
-        pnf_id = sys.argv[1]
+    else:
+        pnf_name = sys.argv[1]
         old_sw_version = sys.argv[2]
         target_sw_version = sys.argv[3]
         rule_name = sys.argv[4]
-        tmp_file = None
+        additional_data_file = None
 
     if len(sys.argv) >= 6:
-        tmp_file = sys.argv[5]
+        additional_data_file = sys.argv[5]
 
-    ret_value = upgrade_precheck(pnf_id, old_sw_version, target_sw_version, rule_name, tmp_file)
-    print json.dumps(ret_value)
+    ret_value = upgrade_pre_check.pre_check(
+        pnf_name, old_sw_version, target_sw_version, rule_name, additional_data_file)
+    print(json.dumps(ret_value))
 
     if ret_value["result"] == conf.RESULT_SUCCESS:
         sys.exit(conf.RET_CODE_SUCCESS)
diff --git a/test/mocks/emssimulator/swm/upgrade_post_check.py b/test/mocks/emssimulator/swm/upgrade_post_check.py
new file mode 100644
index 0000000..5140e06
--- /dev/null
+++ b/test/mocks/emssimulator/swm/upgrade_post_check.py
@@ -0,0 +1,76 @@
+#  ============LICENSE_START=======================================================
+#  ONAP - SO
+#  ================================================================================
+#  Copyright (C) 2020 Huawei Technologies Co., Ltd. All rights reserved.
+#  ================================================================================
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#  ============LICENSE_END=========================================================
+
+import logging
+
+import conf
+import ems_util
+
+
+OPERATION_NAME = "upgrade-post-check"
+logging.basicConfig(level=logging.INFO, format=conf.LOGGER_FORMAT, filename=ems_util.get_log_file(OPERATION_NAME))
+logger = logging.getLogger(OPERATION_NAME)
+
+
+def post_check(pnf_name, old_sw_version, target_sw_version, rule_name, additional_data_file=None):
+    logger.info("PostCheck for oldSwVersion: %s, targetSwVersion: %s, ruleName: %s, additionalDataFile: %s" %
+                (old_sw_version, target_sw_version, rule_name, additional_data_file))
+
+    ne_info = ems_util.get_ne_info_from_db_by_id(pnf_name)
+
+    if not ne_info:
+        ret_value = {
+            "result": conf.RESULT_FAILURE,
+            "reason": "Can not find NE %s" % pnf_name
+        }
+
+        logger.error(ret_value["reason"])
+        return ret_value
+
+    old_sw_version_in_db = ne_info.get("oldSwVersion", "")
+    current_sw_version_in_db = ne_info.get("currentSwVersion", "")
+
+    if old_sw_version != old_sw_version_in_db:
+        ret_value = {
+            "result": conf.RESULT_FAILURE,
+            "reason": "Old SW version %s in PNF is not matched with oldSwVersion %s" %
+                      (old_sw_version_in_db, old_sw_version)
+        }
+
+        logger.error(ret_value["reason"])
+        return ret_value
+
+    if target_sw_version != current_sw_version_in_db:
+        ret_value = {
+            "result": conf.RESULT_FAILURE,
+            "reason": "Current SW version %s in PNF is not matched with targetSwVersion %s" %
+                      (current_sw_version_in_db, target_sw_version)
+        }
+
+        logger.error(ret_value["reason"])
+        return ret_value
+
+    ne_info["checkStatus"] = conf.STATUS_POSTCHECKED
+    ems_util.update_ne_info(ne_info)
+    logger.info("PostCheck SW success, check status: %s" % ne_info["checkStatus"])
+
+    ret_value = {
+         "result": conf.RESULT_SUCCESS
+    }
+
+    return ret_value
diff --git a/test/mocks/emssimulator/swm/upgrade_pre_check.py b/test/mocks/emssimulator/swm/upgrade_pre_check.py
new file mode 100644
index 0000000..ee0423a
--- /dev/null
+++ b/test/mocks/emssimulator/swm/upgrade_pre_check.py
@@ -0,0 +1,65 @@
+#  ============LICENSE_START=======================================================
+#  ONAP - SO
+#  ================================================================================
+#  Copyright (C) 2020 Huawei Technologies Co., Ltd. All rights reserved.
+#  ================================================================================
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#  ============LICENSE_END=========================================================
+
+import logging
+
+import conf
+import ems_util
+
+
+OPERATION_NAME = "upgrade-pre-check"
+logging.basicConfig(level=logging.INFO, format=conf.LOGGER_FORMAT, filename=ems_util.get_log_file(OPERATION_NAME))
+logger = logging.getLogger(OPERATION_NAME)
+
+
+def pre_check(pnf_name, old_sw_version, target_sw_version, rule_name, additional_data_file=None):
+    logger.info("PreCheck for oldSwVersion: %s, targetSwVersion: %s, ruleName: %s, additionalDataFile: %s" %
+                (old_sw_version, target_sw_version, rule_name, additional_data_file))
+
+    ne_info = ems_util.get_ne_info_from_db_by_id(pnf_name)
+
+    if not ne_info:
+        ret_value = {
+            "result": conf.RESULT_FAILURE,
+            "reason": "Can not find NE %s" % pnf_name
+        }
+
+        logger.error(ret_value["reason"])
+        return ret_value
+
+    current_sw_version_in_db = ne_info.get("currentSwVersion", "")
+
+    if old_sw_version != current_sw_version_in_db:
+        ret_value = {
+            "result": conf.RESULT_FAILURE,
+            "reason": "Current SW version %s in PNF is not matched with oldSwVersion %s" %
+                      (current_sw_version_in_db, old_sw_version)
+        }
+
+        logger.error(ret_value["reason"])
+        return ret_value
+
+    ne_info["checkStatus"] = conf.STATUS_PRECHECKED
+    ems_util.update_ne_info(ne_info)
+    logger.info("PreCheck SW success, check status: %s" % ne_info["checkStatus"])
+
+    ret_value = {
+         "result": conf.RESULT_SUCCESS
+    }
+
+    return ret_value