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CISA® Certified Information Systems Auditor®: Study Guide, Third Edition by David Cannon

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Overview of the System Development Life Cycle

All computer software programs undergo a life cycle of transformation during the journey from inception to retirement. The System Development Life Cycle (SDLC) used by ISACA is designed as a general blueprint for the entire life cycle. A client organization may insert additional steps in their methodology. This international SDLC model comprises seven unique phases with a formal review between each phase (see Figure 5-4).

Figure 5-3: Spiral model for software life cycle

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Auditors will encounter SDLC ...

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