Commentary 15 The revelatory value of protocol analysis endures. Still Looking for Trouble: Commentary on Marshall Atlas's "The Nina Wishbow Entrust Technologies Ottawa, ON, canada nina.wishbow@entrust.com user edit" Commentary on "The user edit: Making manuals easier to use." Marshall Adas, IF~F Transactions on Professional Communication, 24:1 (march 1981) 28-29. Upon reading the Atlas (1981) article fifteen years after my first exposure to it, and a good seventeen years after its first appearance in a journal, my first reaction to this article is that it remains one of the best "sound bites" on usability testing I've ever read. To me, this article has a place in the usability canon. This judgment is based on the number of times I've referred to it during my own work as a documentation manager. I've borrowed from it when teaching new employees how to look for problems in their work, I've handed it directly to employees to read, and I've used it as a model for how to debug draft documentation. Although the usability literature often "pooh-poohs" the testing of draft documents, this form of usability testing-iterative "user editing"-remains one of the best user-centered methods ever invented for producing measurable quality improvements in
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