Use Cases Vsuser Stories
If you are on an agile team do you write user stories use cases or both. Yes both identify users and user goals but they serve for.
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Yes both are terms used in gathering requirements from customers in software development.
Use cases vsuser stories. Written by shane hastie angela wick we re in orlando for a working session as part of the core team building babok v3 and over dinner this evening we got to discussing the relationship between user stories and use cases it wasn t the only thing we discussed we are also a social group. But while user stories and use cases are definitely similar there are important differences between them. User stories and use cases don t use both.
User stories often start out the same way as use cases in that each describes one way to use the system is centered around a goal is written from the perspective of a user uses the natural language of the business and on its own does not tell the whole story. The development team were really happy with use cases as gives context and info but also wanted user stories just as a mechanism for story point planning and to give them something more meaning. User stories vs use cases.
Regarding user stories vs use cases in a way a use case is to a user story what functional specs are to business requirements. The user story is the starting point and most importantly gets the customer s pain out front and on the table so that scope can be defined and requirements. User stories and use cases are among the tools that help the developers deliver the expected results and make sure they correspond to the requirements.
I think the easiest way to understand the difference between use cases and user stories is to take a look at an example. It really just more clearly articulates and quantifies it. However these tools often get confused or misused and instead of the value they bring additional problems to the development process.
I use use case diagrams to start with and then if doing agile move to user stories and write these so that they eventually contain similar info as would be in a use case description. User stories are not the same as a use case. It is helpful to explain that use cases come from uml historically and that user stories come from agile and that the two don t join up theoretically.
My take is that until you know how to think in use cases you need to write them to be sure you ve got a clear and. The use case blog states that user stories often start out the same way as use cases in that each describes one way to use the system is centered around a goal is written from the perspective of a user uses the natural language of the business and on its own does not tell the whole story. Each serves a distinct purpose and i think they both have their place on a well run software project.
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