Ed Yourdon

"To us, analysis is the study of a problem domain, leading to a specification of externally observable behavior; a complete, consistent, and feasible statement of what is needed; a coverage of both fun…"

"the challenge of understanding the problem domain and then the system's responsibilities in that light."

"Elements in a coincidentally-cohesive module have no relationship. Typically occurs as the result of modularizing existing code, to separate out redundant code."

"Designed as a companion volume to the acclaimed Object-Oriented Analysis, this book focuses on the middle part of the software lifecycle: the activity of design. It shows readers how to apply object-o…"

"Subject. A Subject is a mechanism for guiding a reader through a large, complex model. Subjects are also helpful for organizing work packages on larger projects, based upon initial OOA investigations."