diff --git a/xos/attic/bandwidthprofile_model.py b/xos/attic/bandwidthprofile_model.py
new file mode 100755
index 0000000..db74626
--- /dev/null
+++ b/xos/attic/bandwidthprofile_model.py
@@ -0,0 +1,17 @@
+
+# Copyright 2017-present Open Networking 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.
+
+
+def __unicode__(self):  return u'%s' % (self.name)
diff --git a/xos/attic/eline_model.py b/xos/attic/eline_model.py
new file mode 100755
index 0000000..db74626
--- /dev/null
+++ b/xos/attic/eline_model.py
@@ -0,0 +1,17 @@
+
+# Copyright 2017-present Open Networking 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.
+
+
+def __unicode__(self):  return u'%s' % (self.name)
diff --git a/xos/attic/enterprisetenant_model.py b/xos/attic/enterprisetenant_model.py
new file mode 100755
index 0000000..db74626
--- /dev/null
+++ b/xos/attic/enterprisetenant_model.py
@@ -0,0 +1,17 @@
+
+# Copyright 2017-present Open Networking 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.
+
+
+def __unicode__(self):  return u'%s' % (self.name)
diff --git a/xos/attic/header.py b/xos/attic/header.py
new file mode 100755
index 0000000..449bd6b
--- /dev/null
+++ b/xos/attic/header.py
@@ -0,0 +1,27 @@
+
+# Copyright 2017-present Open Networking 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.
+
+from django.db import models
+from django.db.models import *
+from core.models import Service
+from core.models import XOSBase
+from core.models import Site
+
+VNAAS_KIND = "vnaas"
+SERVICE_NAME = 'vnaas'
+SERVICE_NAME_ELINE_VERBOSE = 'E-Line Service'
+SERVICE_NAME_ELAN_VERBOSE = 'E-LAN Service'
+SERVICE_NAME_ETREE_VERBOSE = 'E-Tree Service'
+
diff --git a/xos/attic/transportnetowrk_model.py b/xos/attic/transportnetowrk_model.py
new file mode 100755
index 0000000..941aea2
--- /dev/null
+++ b/xos/attic/transportnetowrk_model.py
@@ -0,0 +1,16 @@
+
+# Copyright 2017-present Open Networking 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.
+
+def __unicode__(self):  return u'%s' % (self.name)
diff --git a/xos/attic/usernetworkinterface_model.py b/xos/attic/usernetworkinterface_model.py
new file mode 100755
index 0000000..e48251c
--- /dev/null
+++ b/xos/attic/usernetworkinterface_model.py
@@ -0,0 +1,36 @@
+
+# Copyright 2017-present Open Networking 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.
+
+
+def __unicode__(self):  return u'%s' % (self.name)
+
+def save(self, *args, **kwargs):
+
+    if self.latlng:
+        try:
+            latlng_value = getattr(self, 'latlng').strip()
+            if (latlng_value.startswith('[') and latlng_value.endswith(']') and latlng_value.index(',') > 0):
+                lat = latlng_value[1: latlng_value.index(',')].strip()
+                lng = latlng_value[latlng_value.index(',') + 1: len(latlng_value) - 1].strip()
+
+                # If lat and lng are not floats, the code below should result in an error.
+                lat_validation = float(lat)
+                lng_validation = float(lng)
+            else:
+                raise ValueError("The lat/lng value is not formatted correctly.")
+        except:
+            raise ValueError("The lat/lng value is not formatted correctly.")
+
+    super(UserNetworkInterface, self).save(*args, **kwargs)