diff --git a/spec/controller_mixin/sdata_create_instance_spec.rb b/spec/controller_mixin/sdata_create_instance_spec.rb
index d313d0b..61680d9 100755
--- a/spec/controller_mixin/sdata_create_instance_spec.rb
+++ b/spec/controller_mixin/sdata_create_instance_spec.rb
@@ -6,7 +6,7 @@
   
   describe "given a controller which acts as sdata with a virtual model as a base" do
     
-    class VirtualModel < SData::VirtualBase
+    class VirtualModel < SData::Resource
       attr_accessor :baze
       self.baze_class = Class
     end
@@ -170,4 +170,4 @@ class VirtualModel < SData::VirtualBase
       end
     end
   end
-end
\ No newline at end of file
+end
diff --git a/spec/controller_mixin/sdata_scope/linked_model_spec.rb b/spec/controller_mixin/sdata_scope/linked_model_spec.rb
index 434c02d..ffdd2b8 100644
--- a/spec/controller_mixin/sdata_scope/linked_model_spec.rb
+++ b/spec/controller_mixin/sdata_scope/linked_model_spec.rb
@@ -7,7 +7,7 @@
         BaseModel = Class.new(ActiveRecord::Base)
 
         Object.__send__ :remove_const, :Model if defined?(Model)
-        class Model < SData::VirtualBase
+        class Model < SData::Resource
           self.baze_class = BaseModel
 
           define_payload_map :born_at => { :baze_field => :born_at }
@@ -55,4 +55,4 @@ class Controller < ActionController::Base
       end
     end
   end
-end
\ No newline at end of file
+end
diff --git a/spec/controller_mixin/sdata_scope/non_linked_model_spec.rb b/spec/controller_mixin/sdata_scope/non_linked_model_spec.rb
index 7db0b6f..ab69e10 100644
--- a/spec/controller_mixin/sdata_scope/non_linked_model_spec.rb
+++ b/spec/controller_mixin/sdata_scope/non_linked_model_spec.rb
@@ -5,7 +5,7 @@
     before :all do
 
       Object.__send__ :remove_const, :Model if defined?(Model)
-      class Model < SData::VirtualBase
+      class Model < SData::Resource
         self.baze_class = Class.new
 
         define_payload_map :born_at => { :baze_field => :born_at }
@@ -63,4 +63,4 @@ class Controller < ActionController::Base
       end
     end
   end
-end
\ No newline at end of file
+end
diff --git a/spec/controller_mixin/sdata_scope/scoping_in_config_spec.rb b/spec/controller_mixin/sdata_scope/scoping_in_config_spec.rb
index 0f87eb4..eed5cc1 100644
--- a/spec/controller_mixin/sdata_scope/scoping_in_config_spec.rb
+++ b/spec/controller_mixin/sdata_scope/scoping_in_config_spec.rb
@@ -7,7 +7,7 @@
         BaseModel = Class.new(ActiveRecord::Base)
 
         Object.__send__ :remove_const, :Model if defined?(Model)
-        class Model < SData::VirtualBase
+        class Model < SData::Resource
           self.baze_class = BaseModel
 
           define_payload_map :born_at => { :baze_field => :born_at }
@@ -61,4 +61,4 @@ class Controller < ActionController::Base
       end
     end
   end
-end
\ No newline at end of file
+end
diff --git a/spec/controller_mixin/sdata_update_instance_spec.rb b/spec/controller_mixin/sdata_update_instance_spec.rb
index 9082163..d12d745 100755
--- a/spec/controller_mixin/sdata_update_instance_spec.rb
+++ b/spec/controller_mixin/sdata_update_instance_spec.rb
@@ -19,7 +19,7 @@ def update_attributes(*params)
       end
     end
 
-    class VirtualModel < SData::VirtualBase
+    class VirtualModel < SData::Resource
       attr_accessor :baze
     end
     
diff --git a/spec/payload_map/payload_map_spec.rb b/spec/payload_map/payload_map_spec.rb
index 1686cdd..a0e07cc 100644
--- a/spec/payload_map/payload_map_spec.rb
+++ b/spec/payload_map/payload_map_spec.rb
@@ -3,7 +3,7 @@
 describe SData::PayloadMap do
   context "given sdata model class extended by SData::PayloadMap" do
     before :all do
-      class TradingAccount < SData::VirtualBase
+      class TradingAccount < SData::Resource
 #        extend SData::PayloadMap
 #
         define_payload_map :foo => { :static_value => :bar }
@@ -141,4 +141,4 @@ def method_missing(meth, *args, &block)
       
     end
   end
-end
\ No newline at end of file
+end
diff --git a/spec/sync_controller_mixin/sdata_collection_sync_feed_spec.rb b/spec/sync_controller_mixin/sdata_collection_sync_feed_spec.rb
index b0f540b..e3fe548 100644
--- a/spec/sync_controller_mixin/sdata_collection_sync_feed_spec.rb
+++ b/spec/sync_controller_mixin/sdata_collection_sync_feed_spec.rb
@@ -20,7 +20,7 @@ def update_attributes(*params)
       end
     end
 
-    class VirtualModel < SData::VirtualBase
+    class VirtualModel < SData::Resource
       attr_accessor :baze
     end