Please expalin each of the terms breifly. and answer each of the bullet point

Designing and Specifying the System

Interface design

1. Conceptual model vs mental model vs user model

2. Cognitive ergonomics

3. Working from a task analysis

4. Style of dialog: command line, menus/icons/forms, direct manipulation

5. Evaluating the design: heuristic eval./mockups or prototypes. User testing with observation

Documenting the choices in the functional speicification: what is meant to different audiences.