You are an engineer company and given this task to solve this problem : Stair Climbing Wheel Chair The company ask you to develop an automatic stair climbing wheel chair which can be used by disable people as a transportation method during and after recovery period. The wheel chair must be able to control the forward, backward and side movement automatically and avoid obstacle. 1) Identify at least FIVE (5) functions required to execute the process. Then identify the flow of energy, material and signal going into and out from each function. For each function, describe how the function and flow relates to the problem. Write your answer in a table such as in the following example. No. Function and its Description Flow and its description 1. 2. 3. 4. 5