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Evaluation Methods (Why (test (functionality, usability, user expereince),…
Evaluation Methods
Why
effectiveness
efficiency
identify problems
test
functionality
usability
user expereince
Types
formative
during development
summarative
after development
analytic
theory/guidelines
no end users
experts such as designers
how to run
what functionality to include
what fidelity
how will you compare
involve experts
not end users
emperical
field
lab-based
create a plan
controlled
How
measure
critical errors
non critical errors
error free rate
time on task
likes, dislikes
success
ethical
confidentiality
make users comfortable
emphase they are not being tested
consent
Techniques
cognitive walkthrough
how well it supports user in learning task
expert walks through design to identify problems
GOMS
model human behaviour
heuristic evaluation
simple and natural language
provide feedback