Requirement management is very crucial for the success of any organization. Poor requirement management leads to poor quality software, rework, very low customer satisfaction, financial problem, delay in the delivery of the software, high cost and low market value. All these problems cause failure of the software. I have already given the change management process (a complete strategy) for managing changing requirements. In this paper, I will validate it with the help of real life project. For validation of the change management process, I will apply this process to the data, I have, and then I will analyze the efficiency of the change management process.