HCI 4 (Design, Scenarios and Prototypes)

A Process for Creating Digital Interactive Systems for people to Interact and Communicate during their Everyday and Working Activities

• Four Main Activities
• 1. Requirements
• 2. Alternatives
• 3. Prototyping
• 4. Evaluating

• user centred approach:
• early focus on user and tasks
• empirical measurement
• iterative design

A scenario is an informal narrative description of a specific interaction, usually with a real-world setting.

• why?
• - suggests desrirable constraints such as response time, error behaviour
• -flexible and powerful because exploit human ability to envisage rich interactions with minimal information cues

makes use of personas

The Creation of tangible manifestations of design ideas  that  users, designers and other stakeholders can interact with in a rapid and in an inexpensive way