23.4 Agile planning

Agile methods of software development are iterative approaches where the software is developed and delivered to customers in increments. Unlike plan-driven approaches, the functionality of these increments is not planned in advance but is decided during the development. The decision on what to include in an increment depends on progress and on the customer’s priorities. The argument for this approach is that the customer’s priorities and requirements change, so it makes sense to have a flexible plan that can accommodate these changes. Cohn’s book (Cohn 2005) is an excellent introduction to agile planning.

Agile development methods such as Scrum (Rubin 2013) and Extreme Programming (Beck and Andres 2004) have a two-stage approach ...

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