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DSDM

DSDM. Dynamic Systems Development Method. DSDM Methodology. Goals On time Within budget Of desired quality. DSDM Consortium. Founded 1994 by business-oriented people representing 16 UK companies

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DSDM

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  1. DSDM Dynamic Systems Development Method

  2. DSDM Methodology • Goals • On time • Within budget • Of desired quality

  3. DSDM Consortium • Founded 1994 by business-oriented people representing 16 UK companies • Goal: develop and promote a standard framework for systems development based on the best practices of the rapid application development (RAD) approach

  4. DSDM Consortium • Owns and promotes DSDM framework • New releases (on time of course) • Atern • Licenses resellers • Offers Certifications

  5. DSDM Framework • Incorporate techniques and tools • Combine with other methodologies • Follow Core Principles

  6. Core Principles • Deliverable “good enough” to satisfy business need • Team cooperation and collaboration • Users involvement critical • Team has decision-making authority • High-level requirements are defined early in the project; details are addressed during development

  7. Core Principles • Process is iterative and is structured to support frequent product releases • Core functionality delivered early and additional features delivered in later releases • Testing early and ongoing • Changes are reversible

  8. Development Process • Pre-project Phase • Visualized and selected • Feasibility Study • DSDM is a good fit ? • Business Study • Documents the functions and information requirements at a high level, resulting in a list of prioritized requirements

  9. Development Process • Functional Model Iterative Phase (FMI) • Develops and refines prototypes • Design and Build Iterative Phase (DBI) • Each component is designed, programmed, and reviewed • Implementation Iterative Phase • Documentation, training, user approval • Post-project Phase • performance monitoring and ongoing maintenance

  10. Key Techniques • MoSCoW Prioritation • Prioritize functions honestly so ‘Must Have’ mission critical functions can be delivered quickly in early releases. • Prototyping • Address process, usability, performance, and business aspects • Suitable design and common understanding

  11. Key Techniques • Facilitated Workshops • Getting the right people face-to-face to share information • TimeBoxing • Period of time – 6 weeks or less • Set of tasks resulting in a deliverable • Tasks fixed, not deliverable

  12. Best Applications • DSDM is best applied in projects where time is the fixed factor and functionality can be varied • Poor choice – safety, security, reuse • Cultural shift for most businesses • Consultants • pineywoodstech.com/Services/Methodology.aspx

  13. DSDM Conclusion • While other methodologies are similar to DSDM, among them XP, SCRUM, and RUP, DSDM’s strength lies in its: • Framework structure which permits a choice of tools and techniques • Best practices roots • Emphasis on timely product delivery

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