Assignment

1. Identify a short word processing task to be accomplished using Microsoft Word. Also identify alternate methods of achieving same task in Word. Draw the GOMS task structure model for both methods and use KLM to predict the task completion times. Compare the two methods on the basis of task completion time. Now redesign the interaction and/or interface and try to reduce the task completion time by effectively utilizing KLM model.

2. As part-B of the above assignment measure the actual time a user needs to accomplish these tasks while working on a computer screen in your lab. Do your measurements tally with your predictions of Part A? If no why not?

3. Consider a drawing task of sketching a square 10cm x 10cm and filling it with blue color. Draw and record time taken to perform this task using any two drawing softwares such as - “Paint”, “Photoshop” etc.Compare the task times between the two softwares. Can you relate this to the GOMS model?