Abstract
The combination of software engineering and agile development process can bring great benefits to the development and maintenance of enterprise applications. This chapter introduces the engineering of requirements in an agile Scrum development process. In Scrum, requirements are usually defined as user stories in a product backlog. Since many enterprise applications do not have intensive user actions, stories cannot be linked to users. Topics such as user and enabler stories, non-functional requirements, considerations of architecture and business components, business workflow, and breakdown of user stories are addressed. The requirements engineering of PBIs is illustrated by practical examples. Using UML use cases and collaboration models is recommended to transform the stories in the product backlog into formal requirements specifications. The proposed approach can be part of the agile development framework for flexible software products that are easy to customize and maintain.
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