diff --git a/tempest/services/identity/json/identity_client.py b/tempest/services/identity/json/identity_client.py
index a3ff92d..a6c5049 100644
--- a/tempest/services/identity/json/identity_client.py
+++ b/tempest/services/identity/json/identity_client.py
@@ -12,7 +12,6 @@
 
 import json
 
-from tempest.common import rest_client
 from tempest.common import service_client
 from tempest import config
 from tempest import exceptions
@@ -52,14 +51,14 @@
         post_body = json.dumps({'role': post_body})
         resp, body = self.post('OS-KSADM/roles', post_body)
         self.expected_success(200, resp.status)
-        return rest_client.ResponseBody(resp, self._parse_resp(body))
+        return service_client.ResponseBody(resp, self._parse_resp(body))
 
     def get_role(self, role_id):
         """Get a role by its id."""
         resp, body = self.get('OS-KSADM/roles/%s' % role_id)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBody(resp, body['role'])
+        return service_client.ResponseBody(resp, body['role'])
 
     def create_tenant(self, name, **kwargs):
         """
@@ -76,7 +75,7 @@
         post_body = json.dumps({'tenant': post_body})
         resp, body = self.post('tenants', post_body)
         self.expected_success(200, resp.status)
-        return rest_client.ResponseBody(resp, self._parse_resp(body))
+        return service_client.ResponseBody(resp, self._parse_resp(body))
 
     def delete_role(self, role_id):
         """Delete a role."""
@@ -89,46 +88,46 @@
         url = '/tenants/%s/users/%s/roles' % (tenant_id, user_id)
         resp, body = self.get(url)
         self.expected_success(200, resp.status)
-        return rest_client.ResponseBodyList(resp, self._parse_resp(body))
+        return service_client.ResponseBodyList(resp, self._parse_resp(body))
 
     def assign_user_role(self, tenant_id, user_id, role_id):
         """Add roles to a user on a tenant."""
         resp, body = self.put('/tenants/%s/users/%s/roles/OS-KSADM/%s' %
                               (tenant_id, user_id, role_id), "")
         self.expected_success(200, resp.status)
-        return rest_client.ResponseBody(resp, self._parse_resp(body))
+        return service_client.ResponseBody(resp, self._parse_resp(body))
 
     def remove_user_role(self, tenant_id, user_id, role_id):
         """Removes a role assignment for a user on a tenant."""
         resp, body = self.delete('/tenants/%s/users/%s/roles/OS-KSADM/%s' %
                                  (tenant_id, user_id, role_id))
         self.expected_success(204, resp.status)
-        return rest_client.ResponseBody(resp, body)
+        return service_client.ResponseBody(resp, body)
 
     def delete_tenant(self, tenant_id):
         """Delete a tenant."""
         resp, body = self.delete('tenants/%s' % str(tenant_id))
         self.expected_success(204, resp.status)
-        return rest_client.ResponseBody(resp, body)
+        return service_client.ResponseBody(resp, body)
 
     def get_tenant(self, tenant_id):
         """Get tenant details."""
         resp, body = self.get('tenants/%s' % str(tenant_id))
         self.expected_success(200, resp.status)
-        return rest_client.ResponseBody(resp, self._parse_resp(body))
+        return service_client.ResponseBody(resp, self._parse_resp(body))
 
     def list_roles(self):
         """Returns roles."""
         resp, body = self.get('OS-KSADM/roles')
         self.expected_success(200, resp.status)
-        return rest_client.ResponseBodyList(resp, self._parse_resp(body))
+        return service_client.ResponseBodyList(resp, self._parse_resp(body))
 
     def list_tenants(self):
         """Returns tenants."""
         resp, body = self.get('tenants')
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBodyList(resp, body['tenants'])
+        return service_client.ResponseBodyList(resp, body['tenants'])
 
     def get_tenant_by_name(self, tenant_name):
         tenants = self.list_tenants()
@@ -152,7 +151,7 @@
         post_body = json.dumps({'tenant': post_body})
         resp, body = self.post('tenants/%s' % tenant_id, post_body)
         self.expected_success(200, resp.status)
-        return rest_client.ResponseBody(resp, self._parse_resp(body))
+        return service_client.ResponseBody(resp, self._parse_resp(body))
 
     def create_user(self, name, password, tenant_id, email, **kwargs):
         """Create a user."""
@@ -168,32 +167,32 @@
         post_body = json.dumps({'user': post_body})
         resp, body = self.post('users', post_body)
         self.expected_success(200, resp.status)
-        return rest_client.ResponseBody(resp, self._parse_resp(body))
+        return service_client.ResponseBody(resp, self._parse_resp(body))
 
     def update_user(self, user_id, **kwargs):
         """Updates a user."""
         put_body = json.dumps({'user': kwargs})
         resp, body = self.put('users/%s' % user_id, put_body)
         self.expected_success(200, resp.status)
-        return rest_client.ResponseBody(resp, self._parse_resp(body))
+        return service_client.ResponseBody(resp, self._parse_resp(body))
 
     def get_user(self, user_id):
         """GET a user."""
         resp, body = self.get("users/%s" % user_id)
         self.expected_success(200, resp.status)
-        return rest_client.ResponseBody(resp, self._parse_resp(body))
+        return service_client.ResponseBody(resp, self._parse_resp(body))
 
     def delete_user(self, user_id):
         """Delete a user."""
         resp, body = self.delete("users/%s" % user_id)
         self.expected_success(204, resp.status)
-        return rest_client.ResponseBody(resp, body)
+        return service_client.ResponseBody(resp, body)
 
     def get_users(self):
         """Get the list of users."""
         resp, body = self.get("users")
         self.expected_success(200, resp.status)
-        return rest_client.ResponseBodyList(resp, self._parse_resp(body))
+        return service_client.ResponseBodyList(resp, self._parse_resp(body))
 
     def enable_disable_user(self, user_id, enabled):
         """Enables or disables a user."""
@@ -203,25 +202,25 @@
         put_body = json.dumps({'user': put_body})
         resp, body = self.put('users/%s/enabled' % user_id, put_body)
         self.expected_success(200, resp.status)
-        return rest_client.ResponseBody(resp, self._parse_resp(body))
+        return service_client.ResponseBody(resp, self._parse_resp(body))
 
     def get_token(self, token_id):
         """Get token details."""
         resp, body = self.get("tokens/%s" % token_id)
         self.expected_success(200, resp.status)
-        return rest_client.ResponseBody(resp, self._parse_resp(body))
+        return service_client.ResponseBody(resp, self._parse_resp(body))
 
     def delete_token(self, token_id):
         """Delete a token."""
         resp, body = self.delete("tokens/%s" % token_id)
         self.expected_success(204, resp.status)
-        return rest_client.ResponseBody(resp, body)
+        return service_client.ResponseBody(resp, body)
 
     def list_users_for_tenant(self, tenant_id):
         """List users for a Tenant."""
         resp, body = self.get('/tenants/%s/users' % tenant_id)
         self.expected_success(200, resp.status)
-        return rest_client.ResponseBodyList(resp, self._parse_resp(body))
+        return service_client.ResponseBodyList(resp, self._parse_resp(body))
 
     def get_user_by_username(self, tenant_id, username):
         users = self.list_users_for_tenant(tenant_id)
@@ -240,27 +239,27 @@
         post_body = json.dumps({'OS-KSADM:service': post_body})
         resp, body = self.post('/OS-KSADM/services', post_body)
         self.expected_success(200, resp.status)
-        return rest_client.ResponseBody(resp, self._parse_resp(body))
+        return service_client.ResponseBody(resp, self._parse_resp(body))
 
     def get_service(self, service_id):
         """Get Service."""
         url = '/OS-KSADM/services/%s' % service_id
         resp, body = self.get(url)
         self.expected_success(200, resp.status)
-        return rest_client.ResponseBody(resp, self._parse_resp(body))
+        return service_client.ResponseBody(resp, self._parse_resp(body))
 
     def list_services(self):
         """List Service - Returns Services."""
         resp, body = self.get('/OS-KSADM/services')
         self.expected_success(200, resp.status)
-        return rest_client.ResponseBodyList(resp, self._parse_resp(body))
+        return service_client.ResponseBodyList(resp, self._parse_resp(body))
 
     def delete_service(self, service_id):
         """Delete Service."""
         url = '/OS-KSADM/services/%s' % service_id
         resp, body = self.delete(url)
         self.expected_success(204, resp.status)
-        return rest_client.ResponseBody(resp, body)
+        return service_client.ResponseBody(resp, body)
 
     def update_user_password(self, user_id, new_pass):
         """Update User Password."""
@@ -271,14 +270,15 @@
         put_body = json.dumps({'user': put_body})
         resp, body = self.put('users/%s/OS-KSADM/password' % user_id, put_body)
         self.expected_success(200, resp.status)
-        return rest_client.ResponseBody(resp, self._parse_resp(body))
+        return service_client.ResponseBody(resp, self._parse_resp(body))
 
     def list_extensions(self):
         """List all the extensions."""
         resp, body = self.get('/extensions')
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBodyList(resp, body['extensions']['values'])
+        return service_client.ResponseBodyList(resp,
+                                               body['extensions']['values'])
 
 
 class TokenClientJSON(IdentityClientJSON):
@@ -310,7 +310,7 @@
         resp, body = self.post(self.auth_url, body=body)
         self.expected_success(200, resp.status)
 
-        return rest_client.ResponseBody(resp, body['access'])
+        return service_client.ResponseBody(resp, body['access'])
 
     def auth_token(self, token_id, tenant=None):
         creds = {
@@ -328,7 +328,7 @@
         resp, body = self.post(self.auth_url, body=body)
         self.expected_success(200, resp.status)
 
-        return rest_client.ResponseBody(resp, body['access'])
+        return service_client.ResponseBody(resp, body['access'])
 
     def request(self, method, url, extra_headers=False, headers=None,
                 body=None):
diff --git a/tempest/services/identity/v3/json/credentials_client.py b/tempest/services/identity/v3/json/credentials_client.py
index 83918f6..1289e48 100644
--- a/tempest/services/identity/v3/json/credentials_client.py
+++ b/tempest/services/identity/v3/json/credentials_client.py
@@ -15,7 +15,7 @@
 
 import json
 
-from tempest.common import rest_client
+from tempest.common import service_client
 from tempest.services.identity.v3.json import base
 
 
@@ -36,7 +36,7 @@
         self.expected_success(201, resp.status)
         body = json.loads(body)
         body['credential']['blob'] = json.loads(body['credential']['blob'])
-        return rest_client.ResponseBody(resp, body['credential'])
+        return service_client.ResponseBody(resp, body['credential'])
 
     def update_credential(self, credential_id, **kwargs):
         """Updates a credential."""
@@ -59,7 +59,7 @@
         self.expected_success(200, resp.status)
         body = json.loads(body)
         body['credential']['blob'] = json.loads(body['credential']['blob'])
-        return rest_client.ResponseBody(resp, body['credential'])
+        return service_client.ResponseBody(resp, body['credential'])
 
     def get_credential(self, credential_id):
         """To GET Details of a credential."""
@@ -67,17 +67,17 @@
         self.expected_success(200, resp.status)
         body = json.loads(body)
         body['credential']['blob'] = json.loads(body['credential']['blob'])
-        return rest_client.ResponseBody(resp, body['credential'])
+        return service_client.ResponseBody(resp, body['credential'])
 
     def list_credentials(self):
         """Lists out all the available credentials."""
         resp, body = self.get('credentials')
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBodyList(resp, body['credentials'])
+        return service_client.ResponseBodyList(resp, body['credentials'])
 
     def delete_credential(self, credential_id):
         """Deletes a credential."""
         resp, body = self.delete('credentials/%s' % credential_id)
         self.expected_success(204, resp.status)
-        return rest_client.ResponseBody(resp, body)
+        return service_client.ResponseBody(resp, body)
diff --git a/tempest/services/identity/v3/json/endpoints_client.py b/tempest/services/identity/v3/json/endpoints_client.py
index 59bfa8c..d71836e 100644
--- a/tempest/services/identity/v3/json/endpoints_client.py
+++ b/tempest/services/identity/v3/json/endpoints_client.py
@@ -15,7 +15,7 @@
 
 import json
 
-from tempest.common import rest_client
+from tempest.common import service_client
 from tempest.services.identity.v3.json import base
 
 
@@ -26,7 +26,7 @@
         resp, body = self.get('endpoints')
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBodyList(resp, body['endpoints'])
+        return service_client.ResponseBodyList(resp, body['endpoints'])
 
     def create_endpoint(self, service_id, interface, url, **kwargs):
         """Create endpoint.
@@ -51,7 +51,7 @@
         resp, body = self.post('endpoints', post_body)
         self.expected_success(201, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBody(resp, body['endpoint'])
+        return service_client.ResponseBody(resp, body['endpoint'])
 
     def update_endpoint(self, endpoint_id, service_id=None, interface=None,
                         url=None, region=None, enabled=None, **kwargs):
@@ -78,10 +78,10 @@
         resp, body = self.patch('endpoints/%s' % endpoint_id, post_body)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBody(resp, body['endpoint'])
+        return service_client.ResponseBody(resp, body['endpoint'])
 
     def delete_endpoint(self, endpoint_id):
         """Delete endpoint."""
         resp_header, resp_body = self.delete('endpoints/%s' % endpoint_id)
         self.expected_success(204, resp_header.status)
-        return rest_client.ResponseBody(resp_header, resp_body)
+        return service_client.ResponseBody(resp_header, resp_body)
diff --git a/tempest/services/identity/v3/json/identity_client.py b/tempest/services/identity/v3/json/identity_client.py
index 17ad718..4d333c0 100644
--- a/tempest/services/identity/v3/json/identity_client.py
+++ b/tempest/services/identity/v3/json/identity_client.py
@@ -16,7 +16,6 @@
 import json
 import urllib
 
-from tempest.common import rest_client
 from tempest.common import service_client
 from tempest import config
 from tempest import exceptions
@@ -47,7 +46,7 @@
         resp, body = self.post('users', post_body)
         self.expected_success(201, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBody(resp, body['user'])
+        return service_client.ResponseBody(resp, body['user'])
 
     def update_user(self, user_id, name, **kwargs):
         """Updates a user."""
@@ -76,7 +75,7 @@
         resp, body = self.patch('users/%s' % user_id, post_body)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBody(resp, body['user'])
+        return service_client.ResponseBody(resp, body['user'])
 
     def update_user_password(self, user_id, password, original_password):
         """Updates a user password."""
@@ -87,14 +86,14 @@
         update_user = json.dumps({'user': update_user})
         resp, _ = self.post('users/%s/password' % user_id, update_user)
         self.expected_success(204, resp.status)
-        return rest_client.ResponseBody(resp)
+        return service_client.ResponseBody(resp)
 
     def list_user_projects(self, user_id):
         """Lists the projects on which a user has roles assigned."""
         resp, body = self.get('users/%s/projects' % user_id)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBodyList(resp, body['projects'])
+        return service_client.ResponseBodyList(resp, body['projects'])
 
     def get_users(self, params=None):
         """Get the list of users."""
@@ -104,20 +103,20 @@
         resp, body = self.get(url)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBodyList(resp, body['users'])
+        return service_client.ResponseBodyList(resp, body['users'])
 
     def get_user(self, user_id):
         """GET a user."""
         resp, body = self.get("users/%s" % user_id)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBody(resp, body['user'])
+        return service_client.ResponseBody(resp, body['user'])
 
     def delete_user(self, user_id):
         """Deletes a User."""
         resp, body = self.delete("users/%s" % user_id)
         self.expected_success(204, resp.status)
-        return rest_client.ResponseBody(resp, body)
+        return service_client.ResponseBody(resp, body)
 
     def create_project(self, name, **kwargs):
         """Creates a project."""
@@ -134,7 +133,7 @@
         resp, body = self.post('projects', post_body)
         self.expected_success(201, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBody(resp, body['project'])
+        return service_client.ResponseBody(resp, body['project'])
 
     def list_projects(self, params=None):
         url = "projects"
@@ -143,7 +142,7 @@
         resp, body = self.get(url)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBodyList(resp, body['projects'])
+        return service_client.ResponseBodyList(resp, body['projects'])
 
     def update_project(self, project_id, **kwargs):
         body = self.get_project(project_id)
@@ -162,20 +161,20 @@
         resp, body = self.patch('projects/%s' % project_id, post_body)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBody(resp, body['project'])
+        return service_client.ResponseBody(resp, body['project'])
 
     def get_project(self, project_id):
         """GET a Project."""
         resp, body = self.get("projects/%s" % project_id)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBody(resp, body['project'])
+        return service_client.ResponseBody(resp, body['project'])
 
     def delete_project(self, project_id):
         """Delete a project."""
         resp, body = self.delete('projects/%s' % str(project_id))
         self.expected_success(204, resp.status)
-        return rest_client.ResponseBody(resp, body)
+        return service_client.ResponseBody(resp, body)
 
     def create_role(self, name):
         """Create a Role."""
@@ -186,21 +185,21 @@
         resp, body = self.post('roles', post_body)
         self.expected_success(201, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBody(resp, body['role'])
+        return service_client.ResponseBody(resp, body['role'])
 
     def get_role(self, role_id):
         """GET a Role."""
         resp, body = self.get('roles/%s' % str(role_id))
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBody(resp, body['role'])
+        return service_client.ResponseBody(resp, body['role'])
 
     def list_roles(self):
         """Get the list of Roles."""
         resp, body = self.get("roles")
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBodyList(resp, body['roles'])
+        return service_client.ResponseBodyList(resp, body['roles'])
 
     def update_role(self, name, role_id):
         """Create a Role."""
@@ -211,20 +210,20 @@
         resp, body = self.patch('roles/%s' % str(role_id), post_body)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBody(resp, body['role'])
+        return service_client.ResponseBody(resp, body['role'])
 
     def delete_role(self, role_id):
         """Delete a role."""
         resp, body = self.delete('roles/%s' % str(role_id))
         self.expected_success(204, resp.status)
-        return rest_client.ResponseBody(resp, body)
+        return service_client.ResponseBody(resp, body)
 
     def assign_user_role(self, project_id, user_id, role_id):
         """Add roles to a user on a project."""
         resp, body = self.put('projects/%s/users/%s/roles/%s' %
                               (project_id, user_id, role_id), None)
         self.expected_success(204, resp.status)
-        return rest_client.ResponseBody(resp, body)
+        return service_client.ResponseBody(resp, body)
 
     def create_domain(self, name, **kwargs):
         """Creates a domain."""
@@ -239,20 +238,20 @@
         resp, body = self.post('domains', post_body)
         self.expected_success(201, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBody(resp, body['domain'])
+        return service_client.ResponseBody(resp, body['domain'])
 
     def delete_domain(self, domain_id):
         """Delete a domain."""
         resp, body = self.delete('domains/%s' % str(domain_id))
         self.expected_success(204, resp.status)
-        return rest_client.ResponseBody(resp, body)
+        return service_client.ResponseBody(resp, body)
 
     def list_domains(self):
         """List Domains."""
         resp, body = self.get('domains')
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBodyList(resp, body['domains'])
+        return service_client.ResponseBodyList(resp, body['domains'])
 
     def update_domain(self, domain_id, **kwargs):
         """Updates a domain."""
@@ -269,14 +268,14 @@
         resp, body = self.patch('domains/%s' % domain_id, post_body)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBody(resp, body['domain'])
+        return service_client.ResponseBody(resp, body['domain'])
 
     def get_domain(self, domain_id):
         """Get Domain details."""
         resp, body = self.get('domains/%s' % domain_id)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBody(resp, body['domain'])
+        return service_client.ResponseBody(resp, body['domain'])
 
     def get_token(self, resp_token):
         """Get token details."""
@@ -284,14 +283,14 @@
         resp, body = self.get("auth/tokens", headers=headers)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBody(resp, body['token'])
+        return service_client.ResponseBody(resp, body['token'])
 
     def delete_token(self, resp_token):
         """Deletes token."""
         headers = {'X-Subject-Token': resp_token}
         resp, body = self.delete("auth/tokens", headers=headers)
         self.expected_success(204, resp.status)
-        return rest_client.ResponseBody(resp, body)
+        return service_client.ResponseBody(resp, body)
 
     def create_group(self, name, **kwargs):
         """Creates a group."""
@@ -308,14 +307,14 @@
         resp, body = self.post('groups', post_body)
         self.expected_success(201, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBody(resp, body['group'])
+        return service_client.ResponseBody(resp, body['group'])
 
     def get_group(self, group_id):
         """Get group details."""
         resp, body = self.get('groups/%s' % group_id)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBody(resp, body['group'])
+        return service_client.ResponseBody(resp, body['group'])
 
     def update_group(self, group_id, **kwargs):
         """Updates a group."""
@@ -330,54 +329,54 @@
         resp, body = self.patch('groups/%s' % group_id, post_body)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBody(resp, body['group'])
+        return service_client.ResponseBody(resp, body['group'])
 
     def delete_group(self, group_id):
         """Delete a group."""
         resp, body = self.delete('groups/%s' % str(group_id))
         self.expected_success(204, resp.status)
-        return rest_client.ResponseBody(resp, body)
+        return service_client.ResponseBody(resp, body)
 
     def add_group_user(self, group_id, user_id):
         """Add user into group."""
         resp, body = self.put('groups/%s/users/%s' % (group_id, user_id),
                               None)
         self.expected_success(204, resp.status)
-        return rest_client.ResponseBody(resp, body)
+        return service_client.ResponseBody(resp, body)
 
     def list_group_users(self, group_id):
         """List users in group."""
         resp, body = self.get('groups/%s/users' % group_id)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBodyList(resp, body['users'])
+        return service_client.ResponseBodyList(resp, body['users'])
 
     def list_user_groups(self, user_id):
         """Lists groups which a user belongs to."""
         resp, body = self.get('users/%s/groups' % user_id)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBodyList(resp, body['groups'])
+        return service_client.ResponseBodyList(resp, body['groups'])
 
     def delete_group_user(self, group_id, user_id):
         """Delete user in group."""
         resp, body = self.delete('groups/%s/users/%s' % (group_id, user_id))
         self.expected_success(204, resp.status)
-        return rest_client.ResponseBody(resp, body)
+        return service_client.ResponseBody(resp, body)
 
     def assign_user_role_on_project(self, project_id, user_id, role_id):
         """Add roles to a user on a project."""
         resp, body = self.put('projects/%s/users/%s/roles/%s' %
                               (project_id, user_id, role_id), None)
         self.expected_success(204, resp.status)
-        return rest_client.ResponseBody(resp, body)
+        return service_client.ResponseBody(resp, body)
 
     def assign_user_role_on_domain(self, domain_id, user_id, role_id):
         """Add roles to a user on a domain."""
         resp, body = self.put('domains/%s/users/%s/roles/%s' %
                               (domain_id, user_id, role_id), None)
         self.expected_success(204, resp.status)
-        return rest_client.ResponseBody(resp, body)
+        return service_client.ResponseBody(resp, body)
 
     def list_user_roles_on_project(self, project_id, user_id):
         """list roles of a user on a project."""
@@ -385,7 +384,7 @@
                               (project_id, user_id))
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBodyList(resp, body['roles'])
+        return service_client.ResponseBodyList(resp, body['roles'])
 
     def list_user_roles_on_domain(self, domain_id, user_id):
         """list roles of a user on a domain."""
@@ -393,35 +392,35 @@
                               (domain_id, user_id))
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBodyList(resp, body['roles'])
+        return service_client.ResponseBodyList(resp, body['roles'])
 
     def revoke_role_from_user_on_project(self, project_id, user_id, role_id):
         """Delete role of a user on a project."""
         resp, body = self.delete('projects/%s/users/%s/roles/%s' %
                                  (project_id, user_id, role_id))
         self.expected_success(204, resp.status)
-        return rest_client.ResponseBody(resp, body)
+        return service_client.ResponseBody(resp, body)
 
     def revoke_role_from_user_on_domain(self, domain_id, user_id, role_id):
         """Delete role of a user on a domain."""
         resp, body = self.delete('domains/%s/users/%s/roles/%s' %
                                  (domain_id, user_id, role_id))
         self.expected_success(204, resp.status)
-        return rest_client.ResponseBody(resp, body)
+        return service_client.ResponseBody(resp, body)
 
     def assign_group_role_on_project(self, project_id, group_id, role_id):
         """Add roles to a user on a project."""
         resp, body = self.put('projects/%s/groups/%s/roles/%s' %
                               (project_id, group_id, role_id), None)
         self.expected_success(204, resp.status)
-        return rest_client.ResponseBody(resp, body)
+        return service_client.ResponseBody(resp, body)
 
     def assign_group_role_on_domain(self, domain_id, group_id, role_id):
         """Add roles to a user on a domain."""
         resp, body = self.put('domains/%s/groups/%s/roles/%s' %
                               (domain_id, group_id, role_id), None)
         self.expected_success(204, resp.status)
-        return rest_client.ResponseBody(resp, body)
+        return service_client.ResponseBody(resp, body)
 
     def list_group_roles_on_project(self, project_id, group_id):
         """list roles of a user on a project."""
@@ -429,7 +428,7 @@
                               (project_id, group_id))
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBodyList(resp, body['roles'])
+        return service_client.ResponseBodyList(resp, body['roles'])
 
     def list_group_roles_on_domain(self, domain_id, group_id):
         """list roles of a user on a domain."""
@@ -437,21 +436,21 @@
                               (domain_id, group_id))
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBodyList(resp, body['roles'])
+        return service_client.ResponseBodyList(resp, body['roles'])
 
     def revoke_role_from_group_on_project(self, project_id, group_id, role_id):
         """Delete role of a user on a project."""
         resp, body = self.delete('projects/%s/groups/%s/roles/%s' %
                                  (project_id, group_id, role_id))
         self.expected_success(204, resp.status)
-        return rest_client.ResponseBody(resp, body)
+        return service_client.ResponseBody(resp, body)
 
     def revoke_role_from_group_on_domain(self, domain_id, group_id, role_id):
         """Delete role of a user on a domain."""
         resp, body = self.delete('domains/%s/groups/%s/roles/%s' %
                                  (domain_id, group_id, role_id))
         self.expected_success(204, resp.status)
-        return rest_client.ResponseBody(resp, body)
+        return service_client.ResponseBody(resp, body)
 
     def create_trust(self, trustor_user_id, trustee_user_id, project_id,
                      role_names, impersonation, expires_at):
@@ -469,13 +468,13 @@
         resp, body = self.post('OS-TRUST/trusts', post_body)
         self.expected_success(201, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBody(resp, body['trust'])
+        return service_client.ResponseBody(resp, body['trust'])
 
     def delete_trust(self, trust_id):
         """Deletes a trust."""
         resp, body = self.delete("OS-TRUST/trusts/%s" % trust_id)
         self.expected_success(204, resp.status)
-        return rest_client.ResponseBody(resp, body)
+        return service_client.ResponseBody(resp, body)
 
     def get_trusts(self, trustor_user_id=None, trustee_user_id=None):
         """GET trusts."""
@@ -489,21 +488,21 @@
             resp, body = self.get("OS-TRUST/trusts")
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBodyList(resp, body['trusts'])
+        return service_client.ResponseBodyList(resp, body['trusts'])
 
     def get_trust(self, trust_id):
         """GET trust."""
         resp, body = self.get("OS-TRUST/trusts/%s" % trust_id)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBody(resp, body['trust'])
+        return service_client.ResponseBody(resp, body['trust'])
 
     def get_trust_roles(self, trust_id):
         """GET roles delegated by a trust."""
         resp, body = self.get("OS-TRUST/trusts/%s/roles" % trust_id)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBodyList(resp, body['roles'])
+        return service_client.ResponseBodyList(resp, body['roles'])
 
     def get_trust_role(self, trust_id, role_id):
         """GET role delegated by a trust."""
@@ -511,14 +510,14 @@
                               % (trust_id, role_id))
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBody(resp, body['role'])
+        return service_client.ResponseBody(resp, body['role'])
 
     def check_trust_role(self, trust_id, role_id):
         """HEAD Check if role is delegated by a trust."""
         resp, body = self.head("OS-TRUST/trusts/%s/roles/%s"
                                % (trust_id, role_id))
         self.expected_success(200, resp.status)
-        return rest_client.ResponseBody(resp, body)
+        return service_client.ResponseBody(resp, body)
 
 
 class V3TokenClientJSON(service_client.ServiceClient):
@@ -590,7 +589,7 @@
         body = json.dumps(creds)
         resp, body = self.post(self.auth_url, body=body)
         self.expected_success(201, resp.status)
-        return rest_client.ResponseBody(resp, body)
+        return service_client.ResponseBody(resp, body)
 
     def request(self, method, url, extra_headers=False, headers=None,
                 body=None):
diff --git a/tempest/services/identity/v3/json/policy_client.py b/tempest/services/identity/v3/json/policy_client.py
index 04374a2..25931c8 100644
--- a/tempest/services/identity/v3/json/policy_client.py
+++ b/tempest/services/identity/v3/json/policy_client.py
@@ -15,7 +15,7 @@
 
 import json
 
-from tempest.common import rest_client
+from tempest.common import service_client
 from tempest.services.identity.v3.json import base
 
 
@@ -31,14 +31,14 @@
         resp, body = self.post('policies', post_body)
         self.expected_success(201, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBody(resp, body['policy'])
+        return service_client.ResponseBody(resp, body['policy'])
 
     def list_policies(self):
         """Lists the policies."""
         resp, body = self.get('policies')
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBodyList(resp, body['policies'])
+        return service_client.ResponseBodyList(resp, body['policies'])
 
     def get_policy(self, policy_id):
         """Lists out the given policy."""
@@ -46,7 +46,7 @@
         resp, body = self.get(url)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBody(resp, body['policy'])
+        return service_client.ResponseBody(resp, body['policy'])
 
     def update_policy(self, policy_id, **kwargs):
         """Updates a policy."""
@@ -59,11 +59,11 @@
         resp, body = self.patch(url, post_body)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBody(resp, body['policy'])
+        return service_client.ResponseBody(resp, body['policy'])
 
     def delete_policy(self, policy_id):
         """Deletes the policy."""
         url = "policies/%s" % policy_id
         resp, body = self.delete(url)
         self.expected_success(204, resp.status)
-        return rest_client.ResponseBody(resp, body)
+        return service_client.ResponseBody(resp, body)
diff --git a/tempest/services/identity/v3/json/region_client.py b/tempest/services/identity/v3/json/region_client.py
index cab937e..482cbc6 100644
--- a/tempest/services/identity/v3/json/region_client.py
+++ b/tempest/services/identity/v3/json/region_client.py
@@ -16,7 +16,7 @@
 import json
 import urllib
 
-from tempest.common import rest_client
+from tempest.common import service_client
 from tempest.services.identity.v3.json import base
 
 
@@ -37,7 +37,7 @@
             resp, body = self.post('regions', req_body)
         self.expected_success(201, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBody(resp, body['region'])
+        return service_client.ResponseBody(resp, body['region'])
 
     def update_region(self, region_id, **kwargs):
         """Updates a region."""
@@ -50,7 +50,7 @@
         resp, body = self.patch('regions/%s' % region_id, post_body)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBody(resp, body['region'])
+        return service_client.ResponseBody(resp, body['region'])
 
     def get_region(self, region_id):
         """Get region."""
@@ -58,7 +58,7 @@
         resp, body = self.get(url)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBody(resp, body['region'])
+        return service_client.ResponseBody(resp, body['region'])
 
     def list_regions(self, params=None):
         """List regions."""
@@ -68,10 +68,10 @@
         resp, body = self.get(url)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBodyList(resp, body['regions'])
+        return service_client.ResponseBodyList(resp, body['regions'])
 
     def delete_region(self, region_id):
         """Delete region."""
         resp, body = self.delete('regions/%s' % region_id)
         self.expected_success(204, resp.status)
-        return rest_client.ResponseBody(resp, body)
+        return service_client.ResponseBody(resp, body)
diff --git a/tempest/services/identity/v3/json/service_client.py b/tempest/services/identity/v3/json/service_client.py
index c6595f6..2e2df13 100644
--- a/tempest/services/identity/v3/json/service_client.py
+++ b/tempest/services/identity/v3/json/service_client.py
@@ -15,7 +15,7 @@
 
 import json
 
-from tempest.common import rest_client
+from tempest.common import service_client
 from tempest.services.identity.v3.json import base
 
 
@@ -36,7 +36,7 @@
         resp, body = self.patch('services/%s' % service_id, patch_body)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBody(resp, body['service'])
+        return service_client.ResponseBody(resp, body['service'])
 
     def get_service(self, service_id):
         """Get Service."""
@@ -44,7 +44,7 @@
         resp, body = self.get(url)
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBody(resp, body['service'])
+        return service_client.ResponseBody(resp, body['service'])
 
     def create_service(self, serv_type, name=None, description=None,
                        enabled=True):
@@ -58,16 +58,16 @@
         resp, body = self.post("services", body)
         self.expected_success(201, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBody(resp, body["service"])
+        return service_client.ResponseBody(resp, body["service"])
 
     def delete_service(self, serv_id):
         url = "services/" + serv_id
         resp, body = self.delete(url)
         self.expected_success(204, resp.status)
-        return rest_client.ResponseBody(resp, body)
+        return service_client.ResponseBody(resp, body)
 
     def list_services(self):
         resp, body = self.get('services')
         self.expected_success(200, resp.status)
         body = json.loads(body)
-        return rest_client.ResponseBodyList(resp, body['services'])
+        return service_client.ResponseBodyList(resp, body['services'])