I am starting a small team project (as part of a placement) which involves the assessment of human machine interfaces through usability testing/assessment. We are currently producing a review of different usability testing/assessment methods and have been a little stumped by the variation in terminology.
Specifically, the terms 'Usability Assessment', 'Usability Testing', 'Usability Inspection' have caused some debate amongst the group. Although it may seem trivial or abstract, for the purpose of structuring the review, semantics is pertinent.
My understanding is as follows:
Usability Assessment/Evaluation: a generalist term which encompasses the full body of methods which can be used assess/evaluate the usability of an interface
Usability Testing: a body of usability assessment techniques which evaluates a product by testing it on end-users. Specific methods include: heuristic analysis with experts/users, collection of usability metrics, thinking aloud protocol
Usability Inspection: a body of usability assessment techniques where an evaluator/designer inspects the user interface. Specific methods include: heuristic analysis, cognitive walk-through, ISO guideline evaluation.
Other Usability Measures: surveys, interviews, focus groups.
How "correct" is my current definition structure? Is there a standardized procedure for defining forms of usability assessment? If so, what academic/concrete references outline this?