Lecture 5 IDB

Interaction Design Basics
•design:
owhat it is, goals, constraints
•the design process
owhat happens when
•users
owho they are, what they are like …
•scenarios
orich stories of design
•navigation
ofinding your way around a system
•iteration and prototypes
onever get it right first time!

what is design?
achieving goals within constraints
• goals - purpose
owho is it for, why do they want it
•constraints
omaterials, platforms
•trade-offs
ochoosing which goals or constraints can be relaxed so that others can be met.


Steps …
•requirements
owhat is there and what is wanted …
•analysis
oordering and understanding
•design
owhat to do and how to decide
•iteration and prototyping
ogetting it right … and finding what is really needed!
•implementation and deployment
omaking it and getting it out there

know your user
•who are they?
•probably not like you!
•talk to them
•watch them
•use your imagination

persona
•description of an „example? user
onot necessarily a real person
•use as surrogate user
owhat would Betty think
•details matter
omakes her „real?

example persona
Betty is 37 years old, She has been Warehouse Manager for five years and worked for Simpkins Brothers Engineering for twelve years. She didn?t go to university, but has studied in her evenings for a business diploma. She has two children aged 15 and 7 and does not like to work late. She did part of an introductory in-house computer course some years ago, but it was interrupted when she was promoted and could no longer afford to take the time. Her vision is perfect, but her right-hand movement is slightly restricted following an industrial accident 3 years ago. She is enthusiastic about her work and is happy to delegate responsibility and take suggestions from her staff. However, she does feel threatened by the introduction of yet another new computer system (the third in her time at SBE).