Physical
place and permanent staff vs.
discount usability testing
Focuses
attention on user interface design
Encourages
iterative testing
Pilot test of
paper design
Online
prototype evaluation
Refinement of
versions
Testing of
manuals, online help, etc.
Rigorous
acceptance test
Must
participate from early stages
Must
be partners, not "the enemy
(Dumas & Redish,
1999; Nielsen, 1993)