It is a well-known fact that software documentation is, in practice, poor and incomplete. Though specification, design, and test documents--among other things--are required by standards and capability maturity models (e.g., SEI CMM), such documentation does not exist in a complete and consistent form in most organizations. When documents are produced, they tend to follow no defined standard and lack information that is crucial to make them understandable and usable by developers and maintainers.