Listening to the Customer's Voice
http://www.processimpact.com/articles/usecase.html

Wiegers, Karl E.
Process Impact

Abstract:

Perhaps the greatest challenge facing the software developer is sharing the vision of the final product with the customer. All stakeholders in a project-developers, end users, software managers, customer managers-must achieve a common understanding of what the product will be and do, or someone will be surprised when it is delivered. Surprises in software are almost never good news. Therefore, we need ways to accurately capture, interpret, and represent the voice of the customer when specifying the requirements for a software product.