--- /dev/null
+# Copyright 2018 ZTE Corporation.
+#
+# 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.
+
+from rest_framework import serializers
+
+
+class CreateVnfPkgInfoRequestSerializer(serializers.Serializer):
+    userDefinedData = serializers.DictField(
+        help_text="User defined data for the VNF package.",
+        child=serializers.CharField(help_text="KeyValue Pairs", allow_blank=True),
+        required=False,
+        allow_null=True)
 
--- /dev/null
+# Copyright 2018 ZTE Corporation.
+#
+# 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.
+
+from rest_framework import serializers
+from checksum import ChecksumSerializer
+from vnf_pkg_software_image_info import VnfPackageSoftwareImageInfoSerializer
+from vnf_pkg_artifact_info import VnfPackageArtifactInfoSerializer
+from link import LinkSerializer
+
+
+class _LinkSerializer(serializers.Serializer):
+    self = LinkSerializer(
+        help_text='URI of this resource.',
+        required=True,
+        allow_null=False)
+    vnfd = LinkSerializer(
+        help_text='Link to the VNFD resource.',
+        required=False,
+        allow_null=False)
+    packageContent = LinkSerializer(
+        help_text='Link to the "VNF package content resource.',
+        required=True,
+        allow_null=False)
+
+
+class VnfPkgInfoSerializer(serializers.Serializer):
+    id = serializers.CharField(
+        help_text="Identifier of the on-boarded VNF package.",
+        required=True,
+        allow_null=False,
+        allow_blank=False)
+    vnfdId = serializers.CharField(
+        help_text="This identifier, which is managed by the VNF provider, identifies the VNF package \
+        and the VNFD in a globally unique way.",
+        required=False,
+        allow_null=True,
+        allow_blank=True)
+    vnfProvider = serializers.CharField(
+        help_text="Provider of the VNF package and the VNFD.",
+        required=False,
+        allow_null=True,
+        allow_blank=True)
+    vnfProductName = serializers.CharField(
+        help_text="Name to identify the VNF product.",
+        required=False,
+        allow_null=True,
+        allow_blank=True)
+    vnfSoftwareVersion = serializers.CharField(
+        help_text="Software version of the VNF.",
+        required=False,
+        allow_null=True,
+        allow_blank=True)
+    vnfdVersion = serializers.CharField(
+        help_text="The version of the VNvFD.",
+        required=False,
+        allow_null=True,
+        allow_blank=True)
+    checksum = ChecksumSerializer(
+        help_text="Checksum of the on-boarded VNF package.",
+        required=False,
+        allow_null=True,)
+    softwareImages = VnfPackageSoftwareImageInfoSerializer(
+        help_text="Information about VNF package artifacts that are software images.",
+        required=False,
+        allow_null=True,
+        many=True)
+    additionalArtifacts = VnfPackageArtifactInfoSerializer(
+        help_text="Information about VNF package artifacts contained in the VNF package that are not software images.",
+        required=False,
+        allow_null=True,
+        many=True)
+    onboardingState = serializers.ChoiceField(
+        help_text="On-boarding state of the VNF package.",
+        choices=["CREATED", "UPLOADING", "PROCESSING", "ONBOARDED"],
+        required=True,
+        allow_null=True)
+    operationalState = serializers.ChoiceField(
+        help_text="Operational state of the VNF package.",
+        choices=["ENABLED", "DISABLED"],
+        required=True,
+        allow_null=True)
+    usageState = serializers.ChoiceField(
+        help_text="Usage state of the VNF package.",
+        choices=["IN_USE", "NOT_IN_USE"],
+        required=True,
+        allow_null=True)
+    userDefinedData = serializers.DictField(
+        help_text="User defined data for the VNF package.",
+        child=serializers.CharField(help_text="KeyValue Pairs", allow_blank=True),
+        required=False,
+        allow_null=True)
+    _links = _LinkSerializer(
+        help_text='Links to resources related to this resource.',
+        required=True,
+        allow_null=False
+    )