Sep 7 - Yeap, Severity of Usability Problems (part 8 of UIC for eLearn)

Nielsen's Heuristic Evaluation Methodology: Severity of Usability Problems

Blogging part 8 of USABILITY INSPECTION CRITERIA FOR E-LEARNING PORTALS.

For the practice of heuristic evaluation, usability problems are categorized into major or minor problems.

Alternatively, severity rating is assigned for each usability problem after the usability problem detected by evaluators is aggregated.

Severity of usability problems could be rated using 0 to 4 rating scale.
“ 0 = I don't agree that this is a usability problem at all.
1 = Cosmetic problem only: need not be fixed unless extra time is available on project.
2 = Minor usability problem: fixing this should be given low priority.
3 = Major usability problem: important to fix, so should be given high priority.
4 = Usability catastrophe: imperative to fix this before product can be released.” (Nielsen, 2005d)


source:
Usability Inspection Criteria for e-Learning Portals.
TeckChong Yeap. MDP7515 PROJECT Dissertation. MULTIMEDIA UNIVERSITY, MALAYSIA, October 2008.