Note the level of detail in the preceding examples—the requirements are written as a single sentence with a single verb. When you write this single sentence, you make the requirement much easier to test and far less susceptible to ambiguity. Note also the form “The product shall . . .”; it makes the sentence active and focuses on communicating what the product is intended to do. It also provides a consistent form for the developers and other stakeholders who need to have a clear understanding of what the product is intended to do10. Functional Requirements ↱
Mastering the Requirements Process
Getting Requirements Right
Suzanne Robertson, James Robertson