diff --git a/src/graph2/backends/CL/CLDeviceBackend.cpp b/src/graph2/backends/CL/CLDeviceBackend.cpp
index e060331..28e0534 100644
--- a/src/graph2/backends/CL/CLDeviceBackend.cpp
+++ b/src/graph2/backends/CL/CLDeviceBackend.cpp
@@ -30,6 +30,7 @@
 #include "arm_compute/graph2/Tensor.h"
 #include "arm_compute/graph2/backends/BackendRegistrar.h"
 #include "arm_compute/graph2/backends/CL/CLFunctionFactory.h"
+#include "arm_compute/graph2/backends/CL/CLNodeValidator.h"
 #include "arm_compute/graph2/backends/CL/CLSubTensorHandle.h"
 #include "arm_compute/graph2/backends/CL/CLTensorHandle.h"
 
@@ -145,13 +146,12 @@
     return CLFunctionFactory::create(&node, ctx);
 }
 
-arm_compute::Status CLDeviceBackend::validate_node(const INode &node)
+arm_compute::Status CLDeviceBackend::validate_node(INode &node)
 {
     ARM_COMPUTE_LOG_GRAPH_VERBOSE("Validating CL node with ID : " << node.id() << std::endl);
+    ARM_COMPUTE_ERROR_ON(node.assigned_target() != Target::CL);
 
-    ARM_COMPUTE_UNUSED(node);
-
-    return Status{};
+    return CLNodeValidator::validate(&node);
 }
 
 std::shared_ptr<arm_compute::IMemoryManager> CLDeviceBackend::create_memory_manager(MemoryManagerAffinity affinity)
diff --git a/src/graph2/backends/CL/CLNodeValidator.cpp b/src/graph2/backends/CL/CLNodeValidator.cpp
new file mode 100644
index 0000000..8512856
--- /dev/null
+++ b/src/graph2/backends/CL/CLNodeValidator.cpp
@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2018 ARM Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#include "arm_compute/graph2/backends/CL/CLNodeValidator.h"
+
+#include "arm_compute/graph2/backends/ValidateHelpers.h"
+#include "arm_compute/graph2/nodes/Nodes.h"
+
+#include "arm_compute/core/utils/misc/Cast.h"
+#include "arm_compute/runtime/CL/CLFunctions.h"
+
+using namespace arm_compute::utils::cast;
+
+namespace arm_compute
+{
+namespace graph2
+{
+namespace backends
+{
+Status CLNodeValidator::validate(INode *node)
+{
+    if(node == nullptr)
+    {
+        return Status{};
+    }
+
+    NodeType type = node->type();
+    switch(type)
+    {
+        case NodeType::ConvolutionLayer:
+            return detail::validate_convolution_layer<CLConvolutionLayer,
+                   CLDirectConvolutionLayer,
+                   CLGEMMConvolutionLayer,
+                   CLWinogradConvolutionLayer>(*polymorphic_downcast<ConvolutionLayerNode *>(node));
+        case NodeType::DepthwiseConvolutionLayer:
+            return detail::validate_depthwise_convolution_layer<CLDepthwiseConvolutionLayer,
+                   CLDepthwiseConvolutionLayer3x3>(*polymorphic_downcast<DepthwiseConvolutionLayerNode *>(node));
+        default:
+            return Status{};
+    }
+}
+} // namespace backends
+} // namespace graph2
+} // namespace arm_compute
\ No newline at end of file
diff --git a/src/graph2/backends/NEON/NEDeviceBackend.cpp b/src/graph2/backends/NEON/NEDeviceBackend.cpp
index 9f24498..5569abf 100644
--- a/src/graph2/backends/NEON/NEDeviceBackend.cpp
+++ b/src/graph2/backends/NEON/NEDeviceBackend.cpp
@@ -30,6 +30,7 @@
 #include "arm_compute/graph2/Tensor.h"
 #include "arm_compute/graph2/backends/BackendRegistrar.h"
 #include "arm_compute/graph2/backends/NEON/NEFunctionFactory.h"
+#include "arm_compute/graph2/backends/NEON/NENodeValidator.h"
 #include "arm_compute/graph2/backends/NEON/NESubTensorHandle.h"
 #include "arm_compute/graph2/backends/NEON/NETensorHandle.h"
 
@@ -104,12 +105,12 @@
     return NEFunctionFactory::create(&node, ctx);
 }
 
-arm_compute::Status NEDeviceBackend::validate_node(const INode &node)
+arm_compute::Status NEDeviceBackend::validate_node(INode &node)
 {
     ARM_COMPUTE_LOG_GRAPH_VERBOSE("Validating NEON node with ID : " << node.id() << std::endl);
-    ARM_COMPUTE_UNUSED(node);
+    ARM_COMPUTE_ERROR_ON(node.assigned_target() != Target::NEON);
 
-    return Status{};
+    return NENodeValidator::validate(&node);
 }
 
 std::shared_ptr<arm_compute::IMemoryManager> NEDeviceBackend::create_memory_manager(MemoryManagerAffinity affinity)
diff --git a/src/graph2/backends/NEON/NENodeValidator.cpp b/src/graph2/backends/NEON/NENodeValidator.cpp
new file mode 100644
index 0000000..4620f4c
--- /dev/null
+++ b/src/graph2/backends/NEON/NENodeValidator.cpp
@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2018 ARM Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#include "arm_compute/graph2/backends/NEON/NENodeValidator.h"
+
+#include "arm_compute/graph2/backends/ValidateHelpers.h"
+#include "arm_compute/graph2/nodes/Nodes.h"
+
+#include "arm_compute/core/utils/misc/Cast.h"
+#include "arm_compute/runtime/NEON/NEFunctions.h"
+
+using namespace arm_compute::utils::cast;
+
+namespace arm_compute
+{
+namespace graph2
+{
+namespace backends
+{
+Status NENodeValidator::validate(INode *node)
+{
+    if(node == nullptr)
+    {
+        return Status{};
+    }
+
+    NodeType type = node->type();
+    switch(type)
+    {
+        case NodeType::ConvolutionLayer:
+            return detail::validate_convolution_layer<NEConvolutionLayer,
+                   NEDirectConvolutionLayer,
+                   NEGEMMConvolutionLayer,
+                   NEWinogradLayer>(*polymorphic_downcast<ConvolutionLayerNode *>(node));
+        case NodeType::DepthwiseConvolutionLayer:
+            return detail::validate_depthwise_convolution_layer<NEDepthwiseConvolutionLayer,
+                   NEDepthwiseConvolutionLayer3x3>(*polymorphic_downcast<DepthwiseConvolutionLayerNode *>(node));
+
+        default:
+            return Status{};
+    }
+}
+} // namespace backends
+} // namespace graph2
+} // namespace arm_compute
\ No newline at end of file