Four approaches to interaction design

1.user-centered design – user knows the best

2.activity-centered design – users’ behaviour

3.systems design – structured, rigorous, holistic 

4.genius design – creativity of designer

What is a user-centered approach?

User-centered approach is based on the three principles:

1.Early focus on users and tasks: directly studying cognitive, behavioural, anthropomorphic & attitudinal characteristics

2.Empirical measurement:  users’ reactions and performance to scenarios, manuals, simulations & prototypes are observed, recorded and analysed

3.Iterative design: when problems are found in user testing, fix them and carry out more tests

Early focus on users and tasks

1.Users’ tasks and goals – what

2.Users’ behavior and context of use – how

3.Users’ characteristics – who

4.User consultation

5.Design decisions – users’ context/environment