1 Express how careful study of user tasks and their frequenc

1. Express how careful study of user tasks and their frequencies shapes interface design. .(by own your words)

Solution

Such user-needs review explain what tasks are necessary for the design and which ones could be left out to protect system simplicity and ease of learning. The important thing is that relative task frequencies, these are used in shaping, for example, a menu tree and set of commands . It helps designers to know task frequencies and sequences to make the difficult decisions about what tasks to support. So that no single design would be model for all users and situations, doing well designers have to characterize their users and the context in which their products will be used as exactly and completely as possible.