Iterations are the basic building block of Agile development. Each iteration is a standard, fixed-length timebox, where Agile Teams deliver incremental value in the form of working, tested software and systems. In SAFe, iterations are typically one or two weeks in length, with two being the most common. Iterations provide a regular, predictable cadence for teams to produce an increment of value, as well as to refine those previously developed. These short time periods help the team, Product Owners, Product Managers, and other stakeholders regularly test and evaluate the technical and business hypotheses in a working system. Each iteration anchors an integration point, a ‘pull event’ that assembles various system aspects—functionality, quality, alignment, and fitness for use—across all the teams’ contributions.
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