Lessons Learned with Quick Reference Guides: Timing and Truth
http://www.idratherbewriting.com/2009/02/26/lessons-learned-with-quick-reference-guides-timing-and-information-flux/#more-3042

Johnson, Tom H.
I'd Rather Be Writing
2009

Abstract:

I should never fully trust anyone on a project. I don’t mean this disrespectfully, because I work with competent, talented professionals. But no one has the full picture of how the application will truly work. The quality assurance (QA) engineer usually has the clearest picture. The program manager and project manager are often living in a slightly different world, full of a vision of how the product should work and how they expect users to interact with it, but sometimes they’re missing important nuances in the actual implementation. The interaction designer builds prototypes and assumes the developers will build them to spec, but since the prototypes are usually HTML-based, and not in Java or .NET, variances are inevitable.