Usability Techniques: Analyzing and Reporting Usability Data
http://www.stcsig.org/usability/newsletter/9710-analyzing-data.html

Wilson, Chauncey E.
STC Usability SIG
1997

Abstract:

There is an ongoing discussion in usability circles about the importance of formal reports that document the results of usability testing. I think that each usability evaluation should have a formal report that provides some context for the problems. Not all problems can be addressed immediately and memories fade. Usability reports are also important for showing what a usability specialist has done. They can also be used to determine some metrics, such as the number of problems addressed by development or the number of problems that occurred during successive prototypes or versions of a product.