ABSTRACT
Phase 3: Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
User feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Focusing on Requirements Analysis . . . . . . . . . . . . . . . 26
The user profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Contextual task analysis . . . . . . . . . . . . . . . . . . . . . . . 27
Motivating and Justifying
Requirements Specification . . . . . . . . . . . . . . . . . . . . . . . 29
User Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Work Environment Requirements . . . . . . . . . . . . . . . . . . . 30
Task Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Three key ingredients are necessary to ensure that usability is achieved during product development:
• Application of established design principles and guidelines;
• A structured methodology for design;
• Managerial and organizational techniques.
