Goal:

The goal of this assignment is to learn how to incorporate feedback from an evaluation of a user interface into the next iteration of a prototype. In addition, you will learn how to make a prototype that can be used in a usability test.

UI Redesign:

You have been given a list of heuristic violations that an "outside" group of evaluators found in your prototype. Use this list to focus your redesign work.

First fix all heuristic violations of level 3 or higher in your design. You do not need to fix any violations you cannot reasonably fix in this short period or those whose severity rankings your group disagrees with the evaluators on, but you must give a written justification for both of these cases. If you are able, fix any other violations that are easy to do.

Preview of Usability Test:

In addition to fixing major usability problems, you should make sure your prototype will work for a usability test. You will be performing this test for the next assignment using a stable version of the interface you produce from this assignment. This means that participants (who are not in your group) should be able to use your interface to perform your task scenarios.

Write-up:

This is a group assignment, so please work as a group. Note which parts each of your team members contributes to.

Your write-up should be no more than two pages of text for the overview of UI design changes and prototype overview (plus sketches and screen dumps). Addressing the HE usability problems can take as much space as is necessary. The executable should also be available from the web page along with information on how to use it.

Upcoming due dates:

• Thurs April 12: Second Interactive Prototype due (this assignment)
• Thurs April 19: Web log analysis assignment due
• Thurs April 26: Usability Testing due
• Thurs April 26, Tuesday May 1, Thursday May 3: Class presentations
• Tues May 8: Third interactive prototype due