diff --git a/src/Bridge/Symfony/Routing/ApiLoader.php b/src/Bridge/Symfony/Routing/ApiLoader.php
index f414e0d8de4..991787712ec 100644
--- a/src/Bridge/Symfony/Routing/ApiLoader.php
+++ b/src/Bridge/Symfony/Routing/ApiLoader.php
@@ -123,8 +123,8 @@ public function load($data, $type = null): RouteCollection
                         '_controller' => $controller,
                         '_format' => null,
                         '_api_resource_class' => $operation['resource_class'],
-                        '_api_input_resource_class' => $operation['input_class'],
-                        '_api_output_resource_class' => $operation['output_class'],
+                        '_api_input_class' => $operation['input_class'],
+                        '_api_output_class' => $operation['output_class'],
                         '_api_subresource_operation_name' => $operation['route_name'],
                         '_api_subresource_context' => [
                             'property' => $operation['property'],
@@ -212,8 +212,8 @@ private function addRoute(RouteCollection $routeCollection, string $resourceClas
                 '_controller' => $controller,
                 '_format' => null,
                 '_api_resource_class' => $resourceClass,
-                '_api_input_resource_class' => $resourceMetadata->getAttribute('input_class', $resourceClass),
-                '_api_output_resource_class' => $resourceMetadata->getAttribute('output_class', $resourceClass),
+                '_api_input_class' => $resourceMetadata->getAttribute('input_class', $resourceClass),
+                '_api_output_class' => $resourceMetadata->getAttribute('output_class', $resourceClass),
                 sprintf('_api_%s_operation_name', $operationType) => $operationName,
             ] + ($operation['defaults'] ?? []),
             $operation['requirements'] ?? [],
diff --git a/src/DataProvider/OperationDataProviderTrait.php b/src/DataProvider/OperationDataProviderTrait.php
index a24037592ab..5c9f31e903d 100644
--- a/src/DataProvider/OperationDataProviderTrait.php
+++ b/src/DataProvider/OperationDataProviderTrait.php
@@ -49,7 +49,7 @@ trait OperationDataProviderTrait
      */
     private function getCollectionData(array $attributes, array $context)
     {
-        return $this->collectionDataProvider->getCollection($attributes['output_resource_class'], $attributes['collection_operation_name'], $context);
+        return $this->collectionDataProvider->getCollection($attributes['output_class'], $attributes['collection_operation_name'], $context);
     }
 
     /**
@@ -59,7 +59,7 @@ private function getCollectionData(array $attributes, array $context)
      */
     private function getItemData($identifiers, array $attributes, array $context)
     {
-        return $this->itemDataProvider->getItem($attributes['output_resource_class'], $identifiers, $attributes['item_operation_name'], $context);
+        return $this->itemDataProvider->getItem($attributes['output_class'], $identifiers, $attributes['item_operation_name'], $context);
     }
 
     /**
@@ -75,7 +75,7 @@ private function getSubresourceData($identifiers, array $attributes, array $cont
             throw new RuntimeException('Subresources not supported');
         }
 
-        return $this->subresourceDataProvider->getSubresource($attributes['output_resource_class'], $identifiers, $attributes['subresource_context'] + $context, $attributes['subresource_operation_name']);
+        return $this->subresourceDataProvider->getSubresource($attributes['output_class'], $identifiers, $attributes['subresource_context'] + $context, $attributes['subresource_operation_name']);
     }
 
     /**
@@ -93,7 +93,7 @@ private function extractIdentifiers(array $parameters, array $attributes)
             $id = $parameters['id'];
 
             if (null !== $this->identifierConverter) {
-                return $this->identifierConverter->convert((string) $id, $attributes['output_resource_class']);
+                return $this->identifierConverter->convert((string) $id, $attributes['output_class']);
             }
 
             return $id;
diff --git a/src/EventListener/DeserializeListener.php b/src/EventListener/DeserializeListener.php
index 2b821887ce8..d977823eed1 100644
--- a/src/EventListener/DeserializeListener.php
+++ b/src/EventListener/DeserializeListener.php
@@ -81,6 +81,9 @@ public function onKernelRequest(GetResponseEvent $event)
 
         $format = $this->getFormat($request);
         $context = $this->serializerContextBuilder->createFromRequest($request, false, $attributes);
+        if (isset($context['input_class'])) {
+            $context['resource_class'] = $context['input_class'];
+        }
 
         $data = $request->attributes->get('data');
         if (null !== $data) {
@@ -90,7 +93,7 @@ public function onKernelRequest(GetResponseEvent $event)
         $request->attributes->set(
             'data',
             $this->serializer->deserialize(
-                $requestContent, $attributes['input_resource_class'], $format, $context
+                $requestContent, $attributes['input_class'], $format, $context
             )
         );
     }
diff --git a/src/EventListener/SerializeListener.php b/src/EventListener/SerializeListener.php
index 80e3b0602a7..3f47a476208 100644
--- a/src/EventListener/SerializeListener.php
+++ b/src/EventListener/SerializeListener.php
@@ -63,6 +63,10 @@ public function onKernelView(GetResponseForControllerResultEvent $event)
         }
         $resources = new ResourceList();
         $context['resources'] = &$resources;
+        if (isset($context['output_class'])) {
+            $context['resource_class'] = $context['output_class'];
+        }
+
         $request->attributes->set('_api_normalization_context', $context);
 
         $event->setControllerResult($this->serializer->serialize($controllerResult, $request->getRequestFormat(), $context));
diff --git a/src/Serializer/AbstractItemNormalizer.php b/src/Serializer/AbstractItemNormalizer.php
index 4c9c4a8217d..9091a13147e 100644
--- a/src/Serializer/AbstractItemNormalizer.php
+++ b/src/Serializer/AbstractItemNormalizer.php
@@ -96,10 +96,6 @@ public function hasCacheableSupportsMethod(): bool
      */
     public function normalize($object, $format = null, array $context = [])
     {
-        if (isset($context['resource_class']) && isset($context['normalize_resource_class'])) {
-            $context['resource_class'] = $context['normalize_resource_class'];
-        }
-
         $resourceClass = $this->resourceClassResolver->getResourceClass($object, $context['resource_class'] ?? null, true);
         $context = $this->initContext($resourceClass, $context);
         $context['api_normalize'] = true;
@@ -128,10 +124,6 @@ public function denormalize($data, $class, $format = null, array $context = [])
         $context['api_denormalize'] = true;
         if (!isset($context['resource_class'])) {
             $context['resource_class'] = $class;
-
-            if (isset($context['denormalize_resource_class'])) {
-                $context['resource_class'] = $context['denormalize_resource_class'];
-            }
         }
 
         return parent::denormalize($data, $class, $format, $context);
diff --git a/src/Serializer/SerializerContextBuilder.php b/src/Serializer/SerializerContextBuilder.php
index 01bdf7da2c0..28267939d78 100644
--- a/src/Serializer/SerializerContextBuilder.php
+++ b/src/Serializer/SerializerContextBuilder.php
@@ -73,8 +73,8 @@ public function createFromRequest(Request $request, bool $normalization, array $
         }
 
         $context['resource_class'] = $attributes['resource_class'];
-        $context['denormalize_resource_class'] = $attributes['input_resource_class'] ?? $attributes['resource_class'];
-        $context['normalize_resource_class'] = $attributes['output_resource_class'] ?? $attributes['resource_class'];
+        $context['input_class'] = $attributes['input_class'] ?? $attributes['resource_class'];
+        $context['output_class'] = $attributes['output_class'] ?? $attributes['resource_class'];
         $context['request_uri'] = $request->getRequestUri();
         $context['uri'] = $request->getUri();
 
diff --git a/src/Util/AttributesExtractor.php b/src/Util/AttributesExtractor.php
index f9a0f37f1f7..da8f6e2742e 100644
--- a/src/Util/AttributesExtractor.php
+++ b/src/Util/AttributesExtractor.php
@@ -35,9 +35,8 @@ private function __construct()
     public static function extractAttributes(array $attributes): array
     {
         $result = ['resource_class' => $attributes['_api_resource_class'] ?? null];
-
-        $result['input_resource_class'] = $attributes['_api_input_resource_class'] ?? $result['resource_class'];
-        $result['output_resource_class'] = $attributes['_api_output_resource_class'] ?? $result['resource_class'];
+        $result['input_class'] = $attributes['_api_input_class'] ?? $result['resource_class'];
+        $result['output_class'] = $attributes['_api_output_class'] ?? $result['resource_class'];
 
         if ($subresourceContext = $attributes['_api_subresource_context'] ?? null) {
             $result['subresource_context'] = $subresourceContext;
diff --git a/tests/Bridge/Symfony/Bundle/DataCollector/RequestDataCollectorTest.php b/tests/Bridge/Symfony/Bundle/DataCollector/RequestDataCollectorTest.php
index a2b3d08ba48..5056d418f7a 100644
--- a/tests/Bridge/Symfony/Bundle/DataCollector/RequestDataCollectorTest.php
+++ b/tests/Bridge/Symfony/Bundle/DataCollector/RequestDataCollectorTest.php
@@ -107,7 +107,7 @@ public function testWithResource()
             $this->response
         );
 
-        $this->assertSame(['resource_class' => DummyEntity::class, 'input_resource_class' => DummyEntity::class, 'output_resource_class' => DummyEntity::class, 'item_operation_name' => 'get', 'receive' => true, 'persist' => true], $dataCollector->getRequestAttributes());
+        $this->assertSame(['resource_class' => DummyEntity::class, 'input_class' => DummyEntity::class, 'output_class' => DummyEntity::class, 'item_operation_name' => 'get', 'receive' => true, 'persist' => true], $dataCollector->getRequestAttributes());
         $this->assertSame(['foo', 'bar'], $dataCollector->getAcceptableContentTypes());
         $this->assertSame(DummyEntity::class, $dataCollector->getResourceClass());
         $this->assertSame(['foo' => null, 'a_filter' => \stdClass::class], $dataCollector->getFilters());
diff --git a/tests/Bridge/Symfony/Routing/ApiLoaderTest.php b/tests/Bridge/Symfony/Routing/ApiLoaderTest.php
index a65158140a9..ec9ecf162c9 100644
--- a/tests/Bridge/Symfony/Routing/ApiLoaderTest.php
+++ b/tests/Bridge/Symfony/Routing/ApiLoaderTest.php
@@ -305,8 +305,8 @@ private function getRoute(string $path, string $controller, string $resourceClas
                 '_controller' => $controller,
                 '_format' => null,
                 '_api_resource_class' => $resourceClass,
-                '_api_input_resource_class' => $resourceClass,
-                '_api_output_resource_class' => $resourceClass,
+                '_api_input_class' => $resourceClass,
+                '_api_output_class' => $resourceClass,
                 sprintf('_api_%s_operation_name', $collection ? 'collection' : 'item') => $operationName,
             ] + $extraDefaults,
             $requirements,
@@ -326,8 +326,8 @@ private function getSubresourceRoute(string $path, string $controller, string $r
                 '_controller' => $controller,
                 '_format' => null,
                 '_api_resource_class' => $resourceClass,
-                '_api_input_resource_class' => $resourceClass,
-                '_api_output_resource_class' => $resourceClass,
+                '_api_input_class' => $resourceClass,
+                '_api_output_class' => $resourceClass,
                 '_api_subresource_operation_name' => $operationName,
                 '_api_subresource_context' => $context,
             ],
diff --git a/tests/EventListener/AddFormatListenerTest.php b/tests/EventListener/AddFormatListenerTest.php
index ed833eb81af..014597a3f16 100644
--- a/tests/EventListener/AddFormatListenerTest.php
+++ b/tests/EventListener/AddFormatListenerTest.php
@@ -224,7 +224,7 @@ public function testResourceClassSupportedRequestFormat()
         $event = $eventProphecy->reveal();
 
         $formatsProviderProphecy = $this->prophesize(FormatsProviderInterface::class);
-        $formatsProviderProphecy->getFormatsFromAttributes(['resource_class' => 'Foo', 'input_resource_class' => 'Foo', 'output_resource_class' => 'Foo', 'collection_operation_name' => 'get', 'receive' => true, 'persist' => true])->willReturn(['csv' => ['text/csv']])->shouldBeCalled();
+        $formatsProviderProphecy->getFormatsFromAttributes(['resource_class' => 'Foo', 'input_class' => 'Foo', 'output_class' => 'Foo', 'collection_operation_name' => 'get', 'receive' => true, 'persist' => true])->willReturn(['csv' => ['text/csv']])->shouldBeCalled();
 
         $listener = new AddFormatListener(new Negotiator(), $formatsProviderProphecy->reveal());
         $listener->onKernelRequest($event);
diff --git a/tests/EventListener/DeserializeListenerTest.php b/tests/EventListener/DeserializeListenerTest.php
index 3d73e168307..24e2876280b 100644
--- a/tests/EventListener/DeserializeListenerTest.php
+++ b/tests/EventListener/DeserializeListenerTest.php
@@ -172,7 +172,7 @@ public function testDeserializeResourceClassSupportedFormat(string $method, bool
         $serializerContextBuilderProphecy->createFromRequest(Argument::type(Request::class), false, Argument::type('array'))->willReturn([])->shouldBeCalled();
 
         $formatsProviderProphecy = $this->prophesize(FormatsProviderInterface::class);
-        $formatsProviderProphecy->getFormatsFromAttributes(['resource_class' => 'Foo', 'input_resource_class' => 'Foo', 'output_resource_class' => 'Foo', 'collection_operation_name' => 'post', 'receive' => true, 'persist' => true])->willReturn(self::FORMATS)->shouldBeCalled();
+        $formatsProviderProphecy->getFormatsFromAttributes(['resource_class' => 'Foo', 'input_class' => 'Foo', 'output_class' => 'Foo', 'collection_operation_name' => 'post', 'receive' => true, 'persist' => true])->willReturn(self::FORMATS)->shouldBeCalled();
 
         $listener = new DeserializeListener($serializerProphecy->reveal(), $serializerContextBuilderProphecy->reveal(), $formatsProviderProphecy->reveal());
 
diff --git a/tests/Serializer/SerializerContextBuilderTest.php b/tests/Serializer/SerializerContextBuilderTest.php
index 612ef1f5918..08f539522c7 100644
--- a/tests/Serializer/SerializerContextBuilderTest.php
+++ b/tests/Serializer/SerializerContextBuilderTest.php
@@ -55,32 +55,32 @@ public function testCreateFromRequest()
     {
         $request = Request::create('/foos/1');
         $request->attributes->replace(['_api_resource_class' => 'Foo', '_api_item_operation_name' => 'get', '_api_format' => 'xml', '_api_mime_type' => 'text/xml']);
-        $expected = ['foo' => 'bar', 'item_operation_name' => 'get',  'resource_class' => 'Foo', 'request_uri' => '/foos/1', 'operation_type' => 'item', 'uri' => 'http://localhost/foos/1', 'denormalize_resource_class' => 'Foo', 'normalize_resource_class' => 'Foo'];
+        $expected = ['foo' => 'bar', 'item_operation_name' => 'get',  'resource_class' => 'Foo', 'request_uri' => '/foos/1', 'operation_type' => 'item', 'uri' => 'http://localhost/foos/1', 'output_class' => 'Foo', 'input_class' => 'Foo'];
         $this->assertEquals($expected, $this->builder->createFromRequest($request, true));
 
         $request = Request::create('/foos');
         $request->attributes->replace(['_api_resource_class' => 'Foo', '_api_collection_operation_name' => 'pot', '_api_format' => 'xml', '_api_mime_type' => 'text/xml']);
-        $expected = ['foo' => 'bar', 'collection_operation_name' => 'pot',  'resource_class' => 'Foo', 'request_uri' => '/foos', 'operation_type' => 'collection', 'uri' => 'http://localhost/foos', 'denormalize_resource_class' => 'Foo', 'normalize_resource_class' => 'Foo'];
+        $expected = ['foo' => 'bar', 'collection_operation_name' => 'pot',  'resource_class' => 'Foo', 'request_uri' => '/foos', 'operation_type' => 'collection', 'uri' => 'http://localhost/foos', 'output_class' => 'Foo', 'input_class' => 'Foo'];
         $this->assertEquals($expected, $this->builder->createFromRequest($request, true));
 
         $request = Request::create('/foos/1');
         $request->attributes->replace(['_api_resource_class' => 'Foo', '_api_item_operation_name' => 'get', '_api_format' => 'xml', '_api_mime_type' => 'text/xml']);
-        $expected = ['bar' => 'baz', 'item_operation_name' => 'get',  'resource_class' => 'Foo', 'request_uri' => '/foos/1', 'api_allow_update' => false, 'operation_type' => 'item', 'uri' => 'http://localhost/foos/1', 'denormalize_resource_class' => 'Foo', 'normalize_resource_class' => 'Foo'];
+        $expected = ['bar' => 'baz', 'item_operation_name' => 'get',  'resource_class' => 'Foo', 'request_uri' => '/foos/1', 'api_allow_update' => false, 'operation_type' => 'item', 'uri' => 'http://localhost/foos/1', 'output_class' => 'Foo', 'input_class' => 'Foo'];
         $this->assertEquals($expected, $this->builder->createFromRequest($request, false));
 
         $request = Request::create('/foos', 'POST');
         $request->attributes->replace(['_api_resource_class' => 'Foo', '_api_collection_operation_name' => 'post', '_api_format' => 'xml', '_api_mime_type' => 'text/xml']);
-        $expected = ['bar' => 'baz', 'collection_operation_name' => 'post',  'resource_class' => 'Foo', 'request_uri' => '/foos', 'api_allow_update' => false, 'operation_type' => 'collection', 'uri' => 'http://localhost/foos', 'denormalize_resource_class' => 'Foo', 'normalize_resource_class' => 'Foo'];
+        $expected = ['bar' => 'baz', 'collection_operation_name' => 'post',  'resource_class' => 'Foo', 'request_uri' => '/foos', 'api_allow_update' => false, 'operation_type' => 'collection', 'uri' => 'http://localhost/foos', 'output_class' => 'Foo', 'input_class' => 'Foo'];
         $this->assertEquals($expected, $this->builder->createFromRequest($request, false));
 
         $request = Request::create('/foos', 'PUT');
         $request->attributes->replace(['_api_resource_class' => 'Foo', '_api_collection_operation_name' => 'put', '_api_format' => 'xml', '_api_mime_type' => 'text/xml']);
-        $expected = ['bar' => 'baz', 'collection_operation_name' => 'put', 'resource_class' => 'Foo', 'request_uri' => '/foos', 'api_allow_update' => true, 'operation_type' => 'collection', 'uri' => 'http://localhost/foos', 'denormalize_resource_class' => 'Foo', 'normalize_resource_class' => 'Foo'];
+        $expected = ['bar' => 'baz', 'collection_operation_name' => 'put', 'resource_class' => 'Foo', 'request_uri' => '/foos', 'api_allow_update' => true, 'operation_type' => 'collection', 'uri' => 'http://localhost/foos', 'output_class' => 'Foo', 'input_class' => 'Foo'];
         $this->assertEquals($expected, $this->builder->createFromRequest($request, false));
 
         $request = Request::create('/bars/1/foos');
         $request->attributes->replace(['_api_resource_class' => 'Foo', '_api_subresource_operation_name' => 'get', '_api_format' => 'xml', '_api_mime_type' => 'text/xml']);
-        $expected = ['bar' => 'baz', 'subresource_operation_name' => 'get', 'resource_class' => 'Foo', 'request_uri' => '/bars/1/foos', 'operation_type' => 'subresource', 'api_allow_update' => false, 'uri' => 'http://localhost/bars/1/foos', 'denormalize_resource_class' => 'Foo', 'normalize_resource_class' => 'Foo'];
+        $expected = ['bar' => 'baz', 'subresource_operation_name' => 'get', 'resource_class' => 'Foo', 'request_uri' => '/bars/1/foos', 'operation_type' => 'subresource', 'api_allow_update' => false, 'uri' => 'http://localhost/bars/1/foos', 'output_class' => 'Foo', 'input_class' => 'Foo'];
         $this->assertEquals($expected, $this->builder->createFromRequest($request, false));
     }
 
@@ -93,7 +93,7 @@ public function testThrowExceptionOnInvalidRequest()
 
     public function testReuseExistingAttributes()
     {
-        $expected = ['bar' => 'baz', 'item_operation_name' => 'get', 'resource_class' => 'Foo', 'request_uri' => '/foos/1', 'api_allow_update' => false, 'operation_type' => 'item', 'uri' => 'http://localhost/foos/1', 'denormalize_resource_class' => 'Foo', 'normalize_resource_class' => 'Foo'];
+        $expected = ['bar' => 'baz', 'item_operation_name' => 'get', 'resource_class' => 'Foo', 'request_uri' => '/foos/1', 'api_allow_update' => false, 'operation_type' => 'item', 'uri' => 'http://localhost/foos/1', 'output_class' => 'Foo', 'input_class' => 'Foo'];
         $this->assertEquals($expected, $this->builder->createFromRequest(Request::create('/foos/1'), false, ['resource_class' => 'Foo', 'item_operation_name' => 'get']));
     }
 }
diff --git a/tests/Serializer/SerializerFilterContextBuilderTest.php b/tests/Serializer/SerializerFilterContextBuilderTest.php
index fc57de6de19..6ff7d027f9d 100644
--- a/tests/Serializer/SerializerFilterContextBuilderTest.php
+++ b/tests/Serializer/SerializerFilterContextBuilderTest.php
@@ -36,8 +36,8 @@ public function testCreateFromRequestWithCollectionOperation()
 
         $attributes = [
             'resource_class' => DummyGroup::class,
-            'input_resource_class' => DummyGroup::class,
-            'output_resource_class' => DummyGroup::class,
+            'input_class' => DummyGroup::class,
+            'output_class' => DummyGroup::class,
             'collection_operation_name' => 'get',
         ];
 
@@ -79,8 +79,8 @@ public function testCreateFromRequestWithItemOperation()
 
         $attributes = [
             'resource_class' => DummyGroup::class,
-            'input_resource_class' => DummyGroup::class,
-            'output_resource_class' => DummyGroup::class,
+            'input_class' => DummyGroup::class,
+            'output_class' => DummyGroup::class,
             'item_operation_name' => 'put',
         ];
 
@@ -122,8 +122,8 @@ public function testCreateFromRequestWithoutFilters()
 
         $attributes = [
             'resource_class' => DummyGroup::class,
-            'input_resource_class' => DummyGroup::class,
-            'output_resource_class' => DummyGroup::class,
+            'input_class' => DummyGroup::class,
+            'output_class' => DummyGroup::class,
             'collection_operation_name' => 'get',
         ];
 
@@ -158,8 +158,8 @@ public function testCreateFromRequestWithoutAttributes()
 
         $attributes = [
             'resource_class' => DummyGroup::class,
-            'input_resource_class' => DummyGroup::class,
-            'output_resource_class' => DummyGroup::class,
+            'input_class' => DummyGroup::class,
+            'output_class' => DummyGroup::class,
             'collection_operation_name' => 'get',
             'receive' => true,
             'persist' => true,
diff --git a/tests/Util/RequestAttributesExtractorTest.php b/tests/Util/RequestAttributesExtractorTest.php
index 589526dd434..f383585ed74 100644
--- a/tests/Util/RequestAttributesExtractorTest.php
+++ b/tests/Util/RequestAttributesExtractorTest.php
@@ -30,8 +30,8 @@ public function testExtractCollectionAttributes()
             [
                 'resource_class' => 'Foo',
                 'collection_operation_name' => 'post',
-                'input_resource_class' => 'Foo',
-                'output_resource_class' => 'Foo',
+                'input_class' => 'Foo',
+                'output_class' => 'Foo',
                 'receive' => true,
                 'persist' => true,
             ],
@@ -47,8 +47,8 @@ public function testExtractItemAttributes()
             [
                 'resource_class' => 'Foo',
                 'item_operation_name' => 'get',
-                'input_resource_class' => 'Foo',
-                'output_resource_class' => 'Foo',
+                'input_class' => 'Foo',
+                'output_class' => 'Foo',
                 'receive' => true,
                 'persist' => true,
             ],
@@ -64,8 +64,8 @@ public function testExtractReceive()
             [
                 'resource_class' => 'Foo',
                 'item_operation_name' => 'get',
-                'input_resource_class' => 'Foo',
-                'output_resource_class' => 'Foo',
+                'input_class' => 'Foo',
+                'output_class' => 'Foo',
                 'receive' => false,
                 'persist' => true,
             ],
@@ -78,8 +78,8 @@ public function testExtractReceive()
             [
                 'resource_class' => 'Foo',
                 'item_operation_name' => 'get',
-                'input_resource_class' => 'Foo',
-                'output_resource_class' => 'Foo',
+                'input_class' => 'Foo',
+                'output_class' => 'Foo',
                 'receive' => true,
                 'persist' => true,
             ],
@@ -91,8 +91,8 @@ public function testExtractReceive()
         $this->assertEquals(
             [
                 'resource_class' => 'Foo',
-                'input_resource_class' => 'Foo',
-                'output_resource_class' => 'Foo',
+                'input_class' => 'Foo',
+                'output_class' => 'Foo',
                 'item_operation_name' => 'get',
                 'receive' => true,
                 'persist' => true,
@@ -108,8 +108,8 @@ public function testExtractPersist()
         $this->assertEquals(
             [
                 'resource_class' => 'Foo',
-                'input_resource_class' => 'Foo',
-                'output_resource_class' => 'Foo',
+                'input_class' => 'Foo',
+                'output_class' => 'Foo',
                 'item_operation_name' => 'get',
                 'receive' => true,
                 'persist' => false,
@@ -122,8 +122,8 @@ public function testExtractPersist()
         $this->assertEquals(
             [
                 'resource_class' => 'Foo',
-                'input_resource_class' => 'Foo',
-                'output_resource_class' => 'Foo',
+                'input_class' => 'Foo',
+                'output_class' => 'Foo',
                 'item_operation_name' => 'get',
                 'receive' => true,
                 'persist' => true,
@@ -136,8 +136,8 @@ public function testExtractPersist()
         $this->assertEquals(
             [
                 'resource_class' => 'Foo',
-                'input_resource_class' => 'Foo',
-                'output_resource_class' => 'Foo',
+                'input_class' => 'Foo',
+                'output_class' => 'Foo',
                 'item_operation_name' => 'get',
                 'receive' => true,
                 'persist' => true,
@@ -148,28 +148,28 @@ public function testExtractPersist()
 
     public function testExtractInputOutputResourceClass()
     {
-        $request = new Request([], [], ['_api_resource_class' => 'Foo', '_api_item_operation_name' => 'get', '_api_input_resource_class' => 'Bar']);
+        $request = new Request([], [], ['_api_resource_class' => 'Foo', '_api_item_operation_name' => 'get', '_api_input_class' => 'Bar']);
 
         $this->assertEquals(
             [
                 'resource_class' => 'Foo',
                 'item_operation_name' => 'get',
-                'input_resource_class' => 'Bar',
-                'output_resource_class' => 'Foo',
+                'input_class' => 'Bar',
+                'output_class' => 'Foo',
                 'receive' => true,
                 'persist' => true,
             ],
             RequestAttributesExtractor::extractAttributes($request)
         );
 
-        $request = new Request([], [], ['_api_resource_class' => 'Foo', '_api_item_operation_name' => 'get', '_api_output_resource_class' => 'Bar']);
+        $request = new Request([], [], ['_api_resource_class' => 'Foo', '_api_item_operation_name' => 'get', '_api_output_class' => 'Bar']);
 
         $this->assertEquals(
             [
                 'resource_class' => 'Foo',
                 'item_operation_name' => 'get',
-                'input_resource_class' => 'Foo',
-                'output_resource_class' => 'Bar',
+                'input_class' => 'Foo',
+                'output_class' => 'Bar',
                 'receive' => true,
                 'persist' => true,
             ],
@@ -179,16 +179,16 @@ public function testExtractInputOutputResourceClass()
         $request = new Request([], [], [
             '_api_resource_class' => 'Foo',
             '_api_item_operation_name' => 'get',
-            '_api_input_resource_class' => 'FooBar',
-            '_api_output_resource_class' => 'Bar',
+            '_api_input_class' => 'FooBar',
+            '_api_output_class' => 'Bar',
         ]);
 
         $this->assertEquals(
             [
                 'resource_class' => 'Foo',
                 'item_operation_name' => 'get',
-                'input_resource_class' => 'FooBar',
-                'output_resource_class' => 'Bar',
+                'input_class' => 'FooBar',
+                'output_class' => 'Bar',
                 'receive' => true,
                 'persist' => true,
             ],