Defect severities, part 5 - Handbook of Software Reliability Engineering

Classification used in Michael Lyu's book
Michael Lyu’s Handbook of Software Reliability Engineering feels a bit like the “important, very important, extremely important” mind hack, but without the irony:

Not bad actually. Respects the customers feelings of urgency, while reserving the highest severity for a very small subset of failures. In my opinion the “loophole” is Severe: “important customer feature”. This severity will be fudged. An improvement would be to specify who (e.g. customer product management team) or what (marketing brochure) says which feature is important.

Thursday 27 April 2006 17:02