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diff --git a/src/core/logic/RBARollbacker.hpp b/src/core/logic/RBARollbacker.hpp
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+/**
+ * Copyright (c) 2019 DENSO CORPORATION.
+ * 
+ * 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.
+ */
+
+/**
+ * Rollbacker (rollback of arbitration results) class header
+ */
+
+#ifndef RBARROLLBACKER_HPP
+#define RBARROLLBACKER_HPP
+
+#include <unordered_map>
+#include <memory>
+#include <list>
+
+namespace rba
+{
+class RBAModel;
+class RBAAllocatable;
+class RBAArbitrator;
+
+class RBARollbacker
+{
+ public:
+  RBARollbacker()=default;
+  RBARollbacker(const RBARollbacker&)=delete;
+  RBARollbacker(const RBARollbacker&&)=delete;
+  RBARollbacker& operator=(const RBARollbacker&)=delete;
+  RBARollbacker& operator=(const RBARollbacker&&)=delete;
+  virtual ~RBARollbacker() noexcept;
+
+  /**
+   * Register a backup for child re-arbitration when execute re-arbitration 
+   * during re-arbitration.
+   * Restore child backup when rolling back
+   */
+  void addChild(const std::shared_ptr<RBARollbacker> child);
+
+  void removeChild(const std::shared_ptr<RBARollbacker> child);
+
+  /**
+   * Back up arbitration status and impact information.
+   * (Only "Allocatable" that directly arbitration is backed up)
+   * Child will back up re-arbitraion during execution of re-aribitration.
+   *
+   * Backing up all "Allocatable" on a model is inefficient, 
+   * so back up only those that execute re-arbitration
+   */
+  void backup(std::list<const RBAAllocatable*>& backuplist);
+
+  /**
+   * Roll back the arbitration state and impact information to 
+   * the state when the instance was created
+   */
+  void rollback();
+
+ private:
+  /**
+   * @brief Copy Allocable arbitration state
+   * @param from source of copy
+   * @param to destination of copy
+   */
+  void copyAllocatable(const RBAAllocatable* const from, RBAAllocatable* const to);
+
+  std::list<std::shared_ptr<RBARollbacker>> children_;
+  // Rollback information when arbitration fails
+  std::unordered_map<const RBAAllocatable*, std::unique_ptr<RBAAllocatable>> backupMap_; 
+};
+
+}
+
+#endif