human-computer-interaction

Needfinding

what do people do&&values and goals&&how these activities embedded

interviewing

choosing participants(representation of target users,such as stakeholders , current user of a similar system, non-users).

what are good questions?

open ended<—–>too large interesting is important.

questions to avoid(1:what they would do\like\want in hypothetical situation;2:how often;3:how much do you like on an absolute scale;4:avoid binary quesitons)

survey

diary observation

give people a diary notebook or a structured task or camera,voice…

experience sampling

lead user(they will make their own solution before they get one)

extreme users(can be extreme in all directions)

Rapid prototyping

storyboard:(focus on performing, what happening in key time)

A:setting(people involved, environment, task being accomplished)

B:sequence(step involved, what leads someone to use the app, what task is being illustrated)

C:satisfaction(motivation, what does it enable people to accomplish, what needs does the system fill)

wizard of oz(make an interactive application without code)

video prototyping (cheap and fast)

Heuristic Evaluation

find problems and before user testing

find a set of people—->some heuristic principles—–>look for problems