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diff --git a/compiler/enco/core/src/CppGen/Subnet.h b/compiler/enco/core/src/CppGen/Subnet.h
new file mode 100644
index 000000000..4a5738876
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+++ b/compiler/enco/core/src/CppGen/Subnet.h
@@ -0,0 +1,91 @@
+/*
+ * Copyright (c) 2018 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 __ENCO_CPP_GEN_SUBNET_H__
+#define __ENCO_CPP_GEN_SUBNET_H__
+
+#include "ANN/Binder.h"
+#include "CppGen/MemoryContext.h"
+
+#include <pp/MultiLineText.h>
+#include <map>
+#include <set>
+
+namespace enco
+{
+
+/**
+ * @brief A C++ struct that provides Android NN model & compilation
+ */
+struct SubnetStruct
+{
+  virtual ~SubnetStruct() = default;
+
+  /// @brief Return the field name of ANeuralNetworksModel value
+  virtual std::string model(void) const = 0;
+  /// @brief Return the field name of ANeuralNetworksCompilatoin value
+  virtual std::string compilation(void) const = 0;
+
+  virtual const pp::MultiLineText &def(void) const = 0;
+  virtual const pp::MultiLineText &ctor(void) const = 0;
+  virtual const pp::MultiLineText &dtor(void) const = 0;
+};
+
+class SubnetStructBuilder
+{
+public:
+  std::unique_ptr<SubnetStruct> build(const ANNBinder *binder) const;
+
+public:
+  void expr(const ann::Operand *oper, const std::string &base, const std::string &size)
+  {
+    _weighted.insert(oper);
+    _base_exprs[oper] = base;
+    _size_exprs[oper] = size;
+  }
+
+private:
+  std::set<const ann::Operand *> _weighted;
+  std::map<const ann::Operand *, std::string> _base_exprs;
+  std::map<const ann::Operand *, std::string> _size_exprs;
+};
+
+/**
+ * @brief Generate C++ code that invokes Android NN subnet
+ */
+class SubnetBlockCompiler
+{
+public:
+  SubnetBlockCompiler(const enco::MemoryContext &mem) : _mem(mem)
+  {
+    // DO NOTHING
+  }
+
+public:
+  /// @brief Specify how to access ANeuralNetworksCompilation value (C expression)
+  void bind(const ANNBinder *binder, const std::string &exp) { _compilation_ctx[binder] = exp; }
+
+public:
+  std::unique_ptr<pp::MultiLineText> compile(const ANNBinder *binder) const;
+
+private:
+  const enco::MemoryContext &_mem;
+  std::map<const ANNBinder *, std::string> _compilation_ctx;
+};
+
+} // namespace enco
+
+#endif // __ENCO_CPP_GEN_SUBNET_H__