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Writing Effective Use Cases Alistair Cockburn
Publisher: Addison-Wesley Professional

Introduction Use cases are a popular way to express software requirements. Prentice Hall International Series in Industrial and Systems Engineering, USA. €�Writing Effective Use Cases”, by Alistair Cockburn, is an excellent reading for those who want to learn the art of writing good behavioral specifications in the form of use cases. Have addressed in your papers and have even bought your book (Applying Use Cases – 2nd Edition, A Practical Guide) and books on the topic by other authors, such as Alistair Cockburn's “Writing Effective Use Cases”. (1998) Systems Engineering and Analysis, 3rd Ed. When written well, use cases can effectively convey subtle user-system interactions. Essentially, they list the actors and tell a short story about a usage scenario. Six simple steps to writing effective Use Cases. A use case needs “stuff” behind it to describe it. These are what Cockburn (“Writing Effective Use Cases”) describes as “informal” use cases. A use case diagram is a behavior diagram, so each use case needs its behavior described. They are popular because they are practical. Write Effective Use Case[stage note]. A common liability of use case diagrams is that the diagram diverts our attention from the real goal, which is to describe the use cases. I divide the energy of writing use cases into four stages of precision, according to the amount of energy required and the value of pausing after each stage: Actors & Goals.