ITEC 3230 Lecture Notes - Usability Testing, Usability, Electronic Signatures In Global And National Commerce Act

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Published on 17 Apr 2013
School
York University
Department
Information Technology
Course
ITEC 3230
INTERACTION DESIGN
Evaluation: Introduction
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WHY, WHAT, WHERE AND WHEN TO
EVALUATE
Design and Evaluation happen iteratively
one after the other.
Evaluation:
Why: to check that users can use the product
and that they like it.
What: a conceptual model, early prototypes of
a new system and later, more complete
prototypes.
Where: in natural and laboratory settings.
When: throughout design; finished products
can be evaluated to collect information to
inform new products.
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BRUCE TOGNAZZINI ON EVALUATION
“Iterative design, with its repeating cycle of design
and testing, is the only validated methodology in
existence that will consistently produce successful
results. If you don’t have user-testing as an
integral part of your design process you are going
to throw buckets of money down the drain”
See AskTog.com for topical discussions about
design and evaluation. 3
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Document Summary

Design and evaluation happen iteratively one after the other. Why: to check that users can use the product and that they like it. What: a conceptual model, early prototypes of a new system and later, more complete prototypes. When: throughout design; finished products can be evaluated to collect information to inform new products. Iterative design, with its repeating cycle of design and testing, is the only validated methodology in existence that will consistently produce successful results. If you don"t have user-testing as an integral part of your design process you are going to throw buckets of money down the drain . See asktog. com for topical discussions about design and evaluation. Relies on observations from real use/exhibition of. Usability study (also: user study, usability testing, user testing) In a controlled lab environment to test usability aspects (e. g. efficiency, effectiveness of interface) In the field to test appropriation of the interface (i. e. whether users will use it in their lives.

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