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chap003Day3 - 1-1Irwin/McGraw-HillISOM 313 AE Systems...

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Unformatted text preview: 1-1Irwin/McGraw-HillISOM 313 AE Systems Analysis and DesignHow do you design an information system?Carefully and deliberatelyAvoid analysis paralysisWhat, how, when, where, why, who, I/O of system analysis and design1-2Irwin/McGraw-HillProcess of System DevelopmentSystem development process a set of activities, methods, best practices, deliverables, and automated tools that stakeholders use to develop and continuously improve information systems and software.Many variationsUsing a consistent process for system development:Create efficiencies that allow management to shift resources between projectsProduces consistent documentation that reduces lifetime costs to maintain the systemsPromotes quality1-3Irwin/McGraw-HillThe CMM Process Management ModelCapability Maturity Model(CMM) a standardized framework for assessing the maturity level of an organizations information system development and management processes and products. It consists of five levels of maturity:Level 1Initial: No prescribed process (seat of the pants).Level 2Repeatable: track project costs, schedules, and functionality. Level 3Defined: A standard system development process (methodology) is purchased or developed.Level 4Managed: Measurable goals for quality and productivity are established. Level 5Optimizing: The standardized system development process is continuously monitored and improved upon. 1-4Irwin/McGraw-HillImpact of System Development Process on QualityCMM Project Statistics for a Project Resulting in 200,000 Lines of CodeOrganizations CMM LevelProject Duration (months)Project Person-MonthsNumber of Defects ShippedMedian Cost ($ millions)Lowest Cost ($ millions)Highest Cost ($ millions)130600615.51.8100+218.5143121.3.961.7315807.728.518.9331-5Irwin/McGraw-HillThe Classic Project Phases...
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This note was uploaded on 10/22/2010 for the course ISOM 313 taught by Professor Mee during the Fall '10 term at Suffolk.

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chap003Day3 - 1-1Irwin/McGraw-HillISOM 313 AE Systems...

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