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diff --git a/include/util/tensor/Index.h b/include/util/tensor/Index.h
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+/*
+ * 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 __NNFW_UTIL_TENSOR_INDEX_H__
+#define __NNFW_UTIL_TENSOR_INDEX_H__
+
+#include <cstdint>
+#include <cstddef>
+
+#include <vector>
+#include <initializer_list>
+
+namespace nnfw
+{
+namespace util
+{
+namespace tensor
+{
+
+struct Index
+{
+public:
+  Index(size_t rank) { _offsets.resize(rank); }
+
+public:
+  Index(std::initializer_list<int32_t> offsets) : _offsets{offsets}
+  {
+    // DO NOTHING
+  }
+
+public:
+  size_t rank(void) const { return _offsets.size(); }
+
+public:
+  int32_t at(size_t n) const { return _offsets.at(n); }
+  int32_t &at(size_t n) { return _offsets.at(n); }
+
+private:
+  std::vector<int32_t> _offsets;
+};
+
+// This is used to convert NNAPI tensor index to ARM tensor index or vice versa
+inline static Index copy_reverse(const Index &origin)
+{
+  size_t rank = origin.rank();
+  Index target(rank);
+  for (int i = 0; i < rank; i++)
+    target.at(i) = origin.at(rank-1 -i);
+  return target;
+}
+
+} // namespace tensor
+} // namespace util
+} // namespace nnfw
+
+#endif // __NNFW_UTIL_TENSOR_INDEX_H__