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Balancing Agility and Discipline: A Guide for the Perplexed by Richard Turner, Barry Boehm

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Appendix D. Tools for Balancing

D1. The Spiral Model Anchor Point Milestones

The spiral model anchor point milestones were initially developed in a series of workshops by the USC Center for Software Engineering and its government and industrial affiliates. They addressed two primary problems:

  1. The lack of well-defined milestones for evaluating and tracking progress while using the spiral development model.
  2. The need for a set of common commitment points to use as the phase boundaries for the COCOMO II cost and schedule estimation model.

The milestone content and rationale were initially documented in 1996.1 They were subsequently adopted as the phase gates in the Rational Unified Process,2, 3, 4 the USC Win Win Spiral and MBASE process models, ...

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