Usability Engineering

CHAPTER 2 Analyzing Requirements

Make work visible. This end goal of requirements analysis can be elusive when work is not understood in the same way by all participants. Blomberg, Suchman, and Trigg (1996) discuss this in their exploration of image-processing services for a law firm. Their studies of the firm’s attorneys produced a rich analysis of document processing needs—for each legal proceeding, documents often numbering in the thousands are identified as “responsive” (relevant to the case) by junior attorneys, in order to be submitted for review by the opposing side. Every document page is given a unique number for retrieval purposes. An online retrieval index is created by litigation support workers; the index encodes document attributes ...