Using the design that resulted from all your testing and revisions from Homework 3, you are now going to implement the interface in Visual Basic .NET, and then run a user test of that implementation.
PART A: The first part of this assignment is to implement your interface. You should implement at least enough that all your user tasks can be completed, with sufficient feedback so the users can see what the system's responses are. You should simulate actions of your device. For example, if you were doing a copier, when the user clicks "Start" you might display a dialog box that says everything about the current operation, for example: "now copying, 2-sided, no staples, using paper tray #1". If there are parts of your user interface you do not implement, there should still be controls (buttons, sliders, etc.) that would lead to those parts of the interface, but instead lead to dialog boxes that say "not implemented yet" or something. That is, all of the screens you show should look complete, even if all the operations do not necessarily function.
PART B: Perform a user study of the prototype you created in PART A. You should put your implementation in front of at least one and preferably more than one user. This should be a different user than you used for your other homeworks, and this person should also be a novice at your appliance. As before, you might want to videotape your sessions.
PART C: Next, you will modify your implementation to try to fix the problems you observed in your user study. The fixes should correspond to what you write in the "Possible solution" section of your UARs.