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diff --git a/runtime/onert/frontend/nnapi/wrapper/OperationFactory.h b/runtime/onert/frontend/nnapi/wrapper/OperationFactory.h
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+++ b/runtime/onert/frontend/nnapi/wrapper/OperationFactory.h
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+/*
+ * Copyright (c) 2019 Samsung Electronics Co., Ltd. All Rights Reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __OPERATION_FACTORY_H__
+#define __OPERATION_FACTORY_H__
+
+#include <unordered_map>
+
+#include "ir/Operands.h"
+#include "ir/Operation.h"
+#include "NeuralNetworks.h"
+#include "NeuralNetworksEx.h"
+
+/**
+ * @brief A class to create a onert operation object from NN API input parameters
+ */
+class OperationFactory
+{
+public:
+  struct Param
+  {
+    uint32_t input_count;
+    const uint32_t *inputs;
+    uint32_t output_count;
+    const uint32_t *outputs;
+  };
+
+public:
+  using Generator =
+      std::function<onert::ir::Operation *(const OperationFactory::Param &, onert::ir::Operands &)>;
+
+public:
+  static OperationFactory &get();
+
+private:
+  OperationFactory();
+
+public:
+  onert::ir::Operation *create(ANeuralNetworksOperationType, const OperationFactory::Param &param,
+                               onert::ir::Operands &operands);
+  // TODO add "register" method for separating registration, possibly supporting custom-ops
+
+private:
+  std::unordered_map<ANeuralNetworksOperationType, Generator> _map;
+};
+
+#endif // __OPERATION_FACTORY_H__