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

Goal: develop and promote a standard framework for systems development based on the best practices of the rapid application development (RAD) approach

DSDM Consortium Owns and promotes DSDM

framework New releases (on time of course)

Atern Licenses resellers Offers Certifications

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

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

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

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

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

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

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

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

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