The engineering design process involves five basic steps $($see below$),$ and engineering is all about designing solutions to problems. Today, you did not have to identify a problem $($I$)$; instead, you were given the "problem". Use this experience of designing & building the working $5-$key organ to briefly explain how you engaged in each of the other four engineering processes described below.

I. Identify the problem: make a simple working electronic keyboard using the Scratch programming language, the MakeyMakey, wires, paper & pencils. $($although given in today's lab, engineers often need to figure this out for themselves!$).$

II$.$ Imagine possible solutions to the problem;

III. Plan a series of actions to take to solve the problem;

IV$.$ Build the solution, and;

V$.$ Improve the solution by troubleshooting & making refinements so that it works better.