diff --git a/tempest/api/identity/admin/v3/test_default_project_id.py b/tempest/api/identity/admin/v3/test_default_project_id.py
index 59ffc19..361ff31 100644
--- a/tempest/api/identity/admin/v3/test_default_project_id.py
+++ b/tempest/api/identity/admin/v3/test_default_project_id.py
@@ -36,7 +36,8 @@
     def test_default_project_id(self):
         # create a domain
         dom_name = data_utils.rand_name('dom')
-        domain_body = self.domains_client.create_domain(dom_name)['domain']
+        domain_body = self.domains_client.create_domain(
+            name=dom_name)['domain']
         dom_id = domain_body['id']
         self.addCleanup(self._delete_domain, dom_id)
 
diff --git a/tempest/api/identity/admin/v3/test_domains.py b/tempest/api/identity/admin/v3/test_domains.py
index cbf1439..e71341f 100644
--- a/tempest/api/identity/admin/v3/test_domains.py
+++ b/tempest/api/identity/admin/v3/test_domains.py
@@ -32,7 +32,7 @@
         cls.setup_domains = list()
         for i in range(3):
             domain = cls.domains_client.create_domain(
-                data_utils.rand_name('domain'),
+                name=data_utils.rand_name('domain'),
                 description=data_utils.rand_name('domain-desc'),
                 enabled=i < 2)['domain']
             cls.setup_domains.append(domain)
@@ -67,7 +67,7 @@
         # List domains filtering by name
         params = {'name': self.setup_domains[0]['name']}
         fetched_domains = self.domains_client.list_domains(
-            params=params)['domains']
+            **params)['domains']
         # Verify the filtered list is correct, domain names are unique
         # so exactly one domain should be found with the provided name
         self.assertEqual(1, len(fetched_domains))
@@ -79,7 +79,7 @@
         # List domains filtering by enabled domains
         params = {'enabled': True}
         fetched_domains = self.domains_client.list_domains(
-            params=params)['domains']
+            **params)['domains']
         # Verify the filtered list is correct
         self.assertIn(self.setup_domains[0], fetched_domains)
         self.assertIn(self.setup_domains[1], fetched_domains)
@@ -93,7 +93,7 @@
         d_name = data_utils.rand_name('domain')
         d_desc = data_utils.rand_name('domain-desc')
         domain = self.domains_client.create_domain(
-            d_name, description=d_desc)['domain']
+            name=d_name, description=d_desc)['domain']
         self.addCleanup(test_utils.call_and_ignore_notfound_exc,
                         self._delete_domain, domain['id'])
         self.assertIn('id', domain)
@@ -138,7 +138,7 @@
         d_name = data_utils.rand_name('domain')
         d_desc = data_utils.rand_name('domain-desc')
         domain = self.domains_client.create_domain(
-            d_name, description=d_desc, enabled=False)['domain']
+            name=d_name, description=d_desc, enabled=False)['domain']
         self.addCleanup(self.domains_client.delete_domain, domain['id'])
         self.assertEqual(d_name, domain['name'])
         self.assertFalse(domain['enabled'])
@@ -148,11 +148,15 @@
     def test_create_domain_without_description(self):
         # Create domain only with name
         d_name = data_utils.rand_name('domain')
-        domain = self.domains_client.create_domain(d_name)['domain']
+        domain = self.domains_client.create_domain(name=d_name)['domain']
         self.addCleanup(self._delete_domain, domain['id'])
         self.assertIn('id', domain)
         expected_data = {'name': d_name, 'enabled': True}
-        self.assertIsNone(domain['description'])
+        # TODO(gmann): there is bug in keystone liberty version where
+        # description is not being returned if it is not being passed in
+        # request. Bug#1649245. Once bug is fixed then we can enable the below
+        # check.
+        # self.assertEqual('', domain['description'])
         self.assertDictContainsSubset(expected_data, domain)
 
 
diff --git a/tempest/api/identity/admin/v3/test_domains_negative.py b/tempest/api/identity/admin/v3/test_domains_negative.py
index 4330cab..100a121 100644
--- a/tempest/api/identity/admin/v3/test_domains_negative.py
+++ b/tempest/api/identity/admin/v3/test_domains_negative.py
@@ -28,7 +28,7 @@
         d_name = data_utils.rand_name('domain')
         d_desc = data_utils.rand_name('domain-desc')
         domain = self.domains_client.create_domain(
-            d_name,
+            name=d_name,
             description=d_desc)['domain']
         domain_id = domain['id']
 
@@ -51,7 +51,8 @@
         # Domain name length should not ne greater than 64 characters
         d_name = 'a' * 65
         self.assertRaises(lib_exc.BadRequest,
-                          self.domains_client.create_domain, d_name)
+                          self.domains_client.create_domain,
+                          name=d_name)
 
     @test.attr(type=['negative'])
     @test.idempotent_id('43781c07-764f-4cf2-a405-953c1916f605')
@@ -64,9 +65,10 @@
     @test.idempotent_id('e6f9e4a2-4f36-4be8-bdbc-4e199ae29427')
     def test_domain_create_duplicate(self):
         domain_name = data_utils.rand_name('domain-dup')
-        domain = self.domains_client.create_domain(domain_name)['domain']
+        domain = self.domains_client.create_domain(name=domain_name)['domain']
         domain_id = domain['id']
         self.addCleanup(self.delete_domain, domain_id)
         # Domain name should be unique
         self.assertRaises(
-            lib_exc.Conflict, self.domains_client.create_domain, domain_name)
+            lib_exc.Conflict, self.domains_client.create_domain,
+            name=domain_name)
diff --git a/tempest/api/identity/admin/v3/test_inherits.py b/tempest/api/identity/admin/v3/test_inherits.py
index c7e8411..33fce8d 100644
--- a/tempest/api/identity/admin/v3/test_inherits.py
+++ b/tempest/api/identity/admin/v3/test_inherits.py
@@ -31,7 +31,7 @@
         u_email = '%s@testmail.tm' % u_name
         u_password = data_utils.rand_name('pass-')
         cls.domain = cls.domains_client.create_domain(
-            data_utils.rand_name('domain-'),
+            name=data_utils.rand_name('domain-'),
             description=data_utils.rand_name('domain-desc-'))['domain']
         cls.project = cls.projects_client.create_project(
             data_utils.rand_name('project-'),
diff --git a/tempest/api/identity/admin/v3/test_roles.py b/tempest/api/identity/admin/v3/test_roles.py
index f5bf923..670cb2f 100644
--- a/tempest/api/identity/admin/v3/test_roles.py
+++ b/tempest/api/identity/admin/v3/test_roles.py
@@ -34,7 +34,7 @@
         u_email = '%s@testmail.tm' % u_name
         cls.u_password = data_utils.rand_password()
         cls.domain = cls.domains_client.create_domain(
-            data_utils.rand_name('domain'),
+            name=data_utils.rand_name('domain'),
             description=data_utils.rand_name('domain-desc'))['domain']
         cls.project = cls.projects_client.create_project(
             data_utils.rand_name('project'),
diff --git a/tempest/lib/common/cred_client.py b/tempest/lib/common/cred_client.py
index ad968f1..3f10dee 100644
--- a/tempest/lib/common/cred_client.py
+++ b/tempest/lib/common/cred_client.py
@@ -140,7 +140,7 @@
             # Domain names must be unique, in any case a list is returned,
             # selecting the first (and only) element
             self.creds_domain = self.domains_client.list_domains(
-                params={'name': domain_name})['domains'][0]
+                name=domain_name)['domains'][0]
         except lib_exc.NotFound:
             # TODO(andrea) we could probably create the domain on the fly
             msg = "Requested domain %s could not be found" % domain_name
diff --git a/tempest/services/identity/v3/json/domains_client.py b/tempest/services/identity/v3/json/domains_client.py
index fe929a5..43cb62c 100644
--- a/tempest/services/identity/v3/json/domains_client.py
+++ b/tempest/services/identity/v3/json/domains_client.py
@@ -21,29 +21,36 @@
 class DomainsClient(rest_client.RestClient):
     api_version = "v3"
 
-    def create_domain(self, name, **kwargs):
-        """Creates a domain."""
-        description = kwargs.get('description', None)
-        en = kwargs.get('enabled', True)
-        post_body = {
-            'description': description,
-            'enabled': en,
-            'name': name
-        }
-        post_body = json.dumps({'domain': post_body})
+    def create_domain(self, **kwargs):
+        """Creates a domain.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        http://developer.openstack.org/api-ref/identity/v3/index.html#create-domain
+        """
+        post_body = json.dumps({'domain': kwargs})
         resp, body = self.post('domains', post_body)
         self.expected_success(201, resp.status)
         body = json.loads(body)
         return rest_client.ResponseBody(resp, body)
 
     def delete_domain(self, domain_id):
-        """Deletes a domain."""
+        """Deletes a domain.
+
+        For APi details, please refer to the official API reference:
+        http://developer.openstack.org/api-ref/identity/v3/index.html#delete-domain
+        """
         resp, body = self.delete('domains/%s' % domain_id)
         self.expected_success(204, resp.status)
         return rest_client.ResponseBody(resp, body)
 
-    def list_domains(self, params=None):
-        """List Domains."""
+    def list_domains(self, **params):
+        """List Domains.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        http://developer.openstack.org/api-ref/identity/v3/index.html#list-domains
+        """
         url = 'domains'
         if params:
             url += '?%s' % urllib.urlencode(params)
@@ -53,24 +60,24 @@
         return rest_client.ResponseBody(resp, body)
 
     def update_domain(self, domain_id, **kwargs):
-        """Updates a domain."""
-        body = self.show_domain(domain_id)['domain']
-        description = kwargs.get('description', body['description'])
-        en = kwargs.get('enabled', body['enabled'])
-        name = kwargs.get('name', body['name'])
-        post_body = {
-            'description': description,
-            'enabled': en,
-            'name': name
-        }
-        post_body = json.dumps({'domain': post_body})
+        """Updates a domain.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        http://developer.openstack.org/api-ref/identity/v3/index.html#update-domain
+        """
+        post_body = json.dumps({'domain': kwargs})
         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)
 
     def show_domain(self, domain_id):
-        """Get Domain details."""
+        """Get Domain details.
+
+        For API details, please refer to the official API reference:
+        http://developer.openstack.org/api-ref/identity/v3/index.html#show-domain-details
+        """
         resp, body = self.get('domains/%s' % domain_id)
         self.expected_success(200, resp.status)
         body = json.loads(body)