diff --git a/models-pap/pom.xml b/models-pap/pom.xml
new file mode 100644
index 0000000..1cc5603
--- /dev/null
+++ b/models-pap/pom.xml
@@ -0,0 +1,41 @@
+<!--
+  ============LICENSE_START=======================================================
+   Copyright (C) 2019 Nordix Foundation.
+  ================================================================================
+  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.
+
+  SPDX-License-Identifier: Apache-2.0
+  ============LICENSE_END=========================================================
+-->
+
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.onap.policy.models</groupId>
+        <artifactId>policy-models</artifactId>
+        <version>2.0.0-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>models-pap</artifactId>
+
+    <name>${project.artifactId}</name>
+    <description>The models for Policy Administration (PAP) REST API's.</description>
+    <dependencies>
+        <dependency>
+            <groupId>org.onap.policy.common</groupId>
+            <artifactId>pdp-common</artifactId>
+            <version>${policy.common.version}</version>
+        </dependency>
+    </dependencies>
+</project>
\ No newline at end of file
diff --git a/models-pap/src/main/java/org/onap/policy/models/pap/concepts/PdpGroup.java b/models-pap/src/main/java/org/onap/policy/models/pap/concepts/PdpGroup.java
new file mode 100644
index 0000000..6da5a10
--- /dev/null
+++ b/models-pap/src/main/java/org/onap/policy/models/pap/concepts/PdpGroup.java
@@ -0,0 +1,49 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2019 Nordix Foundation.
+ * ================================================================================
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.models.pap.concepts;
+
+import java.util.List;
+import java.util.Map;
+
+import lombok.Getter;
+import lombok.Setter;
+import lombok.ToString;
+
+import org.onap.policy.pdp.common.enums.PdpState;
+
+/**
+ * Class to represent a PDPGroup, which groups multiple PDPSubGroup entities together for a particular domain.
+ *
+ * @author Ram Krishna Verma (ram.krishna.verma@est.tech)
+ */
+@Getter
+@Setter
+@ToString
+public class PdpGroup {
+
+    private String name;
+    private String version;
+    private PdpState state;
+    private String description;
+    private Map<String, String> properties;
+    private List<PdpSubGroup> pdpSubgroups;
+
+}
diff --git a/models-pap/src/main/java/org/onap/policy/models/pap/concepts/PdpInstanceDetails.java b/models-pap/src/main/java/org/onap/policy/models/pap/concepts/PdpInstanceDetails.java
new file mode 100644
index 0000000..44645fc
--- /dev/null
+++ b/models-pap/src/main/java/org/onap/policy/models/pap/concepts/PdpInstanceDetails.java
@@ -0,0 +1,44 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2019 Nordix Foundation.
+ * ================================================================================
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.models.pap.concepts;
+
+import lombok.Getter;
+import lombok.Setter;
+import lombok.ToString;
+
+import org.onap.policy.pdp.common.enums.PdpHealthStatus;
+import org.onap.policy.pdp.common.enums.PdpState;
+
+/**
+ * Class to represent details of a running instance of PDP.
+ *
+ * @author Ram Krishna Verma (ram.krishna.verma@est.tech)
+ */
+@Getter
+@Setter
+@ToString
+public class PdpInstanceDetails {
+
+    private String instanceId;
+    private PdpState state;
+    private PdpHealthStatus healthy;
+    private String message;
+}
diff --git a/models-pap/src/main/java/org/onap/policy/models/pap/concepts/PdpSubGroup.java b/models-pap/src/main/java/org/onap/policy/models/pap/concepts/PdpSubGroup.java
new file mode 100644
index 0000000..248c829
--- /dev/null
+++ b/models-pap/src/main/java/org/onap/policy/models/pap/concepts/PdpSubGroup.java
@@ -0,0 +1,50 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2019 Nordix Foundation.
+ * ================================================================================
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.models.pap.concepts;
+
+import java.util.List;
+import java.util.Map;
+
+import lombok.Getter;
+import lombok.Setter;
+import lombok.ToString;
+
+import org.onap.policy.pdp.common.models.Policy;
+
+/**
+ * Class to represent a group of all PDP's of the same pdp type running for a particular domain.
+ *
+ * @author Ram Krishna Verma (ram.krishna.verma@est.tech)
+ */
+@Getter
+@Setter
+@ToString
+public class PdpSubGroup {
+
+    private String pdpType;
+    private List<String> supportedPolicyTypes;
+    private List<Policy> policies;
+    private int currentInstanceCount;
+    private int desiredInstanceCount;
+    private Map<String, String> properties;
+    private List<PdpInstanceDetails> pdpInstances;
+
+}
diff --git a/models-pap/src/test/java/org/onap/policy/models/pap/concepts/TestModels.java b/models-pap/src/test/java/org/onap/policy/models/pap/concepts/TestModels.java
new file mode 100644
index 0000000..c87aead
--- /dev/null
+++ b/models-pap/src/test/java/org/onap/policy/models/pap/concepts/TestModels.java
@@ -0,0 +1,45 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2019 Nordix Foundation.
+ * ================================================================================
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.models.pap.concepts;
+
+import com.openpojo.reflection.filters.FilterPackageInfo;
+import com.openpojo.validation.Validator;
+import com.openpojo.validation.ValidatorBuilder;
+import com.openpojo.validation.test.impl.GetterTester;
+import com.openpojo.validation.test.impl.SetterTester;
+
+import org.junit.Test;
+import org.onap.policy.common.utils.validation.ToStringTester;
+
+/**
+ * Class to perform unit testing of models.
+ *
+ * @author Ram Krishna Verma (ram.krishna.verma@est.tech)
+ */
+public class TestModels {
+
+    @Test
+    public void testPapModels() {
+        final Validator validator = ValidatorBuilder.create().with(new ToStringTester()).with(new SetterTester())
+                .with(new GetterTester()).build();
+        validator.validate(TestModels.class.getPackage().getName(), new FilterPackageInfo());
+    }
+}
diff --git a/pom.xml b/pom.xml
index 0ee588c..6277849 100644
--- a/pom.xml
+++ b/pom.xml
@@ -53,6 +53,7 @@
         <module>models-base</module>
         <module>models-dao</module>
         <module>models-tosca</module>
+        <module>models-pap</module>
     </modules>
 
     <distributionManagement>