Future software applications increasingly need the agility to adapt to rapid change and the discipline to provide dependable software-intensive products and services. Considerable perplexity currently reigns in assessing the ability of agile methods such as Extreme Programming, Scrum, Crystal, and Adaptive Software Development in providing both agility and discipline, in comparison with the use of plan-driven methods oriented around the use of frameworks such as the software Capability Maturity Model (CMM) and the CMM-Integrated (CMMI).
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