Agile software development and UML
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A presentation on Agile Software Development with UML, showing the features, principles and benefits of the combination of agility with
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Agile software development and UML
- 1. AGILE SOFTWARE DEVELOPMENT AND UML John O. Iyaniwura BSc (Hons), MSc New Vision Labs Thursday 11th October, 2012
- 2. Overview • Agile Software Development, What Is It? • Agile Methodology, Why Adopt It? • Agile Software Development, Main Features • UML- Unified Modeling Language • Benefits Of Adopting UML • UML- Key Components • Agile + UML = Pragmatic Software Development • Summary • References • Questions? Agile Software Development With UML 2
- 3. Agile Software Development, What Is It? • An approach to developing software • February 2001, 17 Software developers, Snowbird, Utah, USA • Manifesto for Agile Software Development • ‘We are uncovering better ways of developing software by doing it and helping others do it. Through this work we have come to value: • Individuals and interactions over processes and tools Working software over comprehensive documentation Customer collaboration over contract negotiation Responding to change over following a plan • That is, while there is value in the items on the right, we value the items on the left more’. • Source: http://agilemanifesto.org/ Accessed: 09/10/2012 Agile Software Development With UML 3
- 4. Agile Methodology, Why Adopt It? • Agile software development is: • incremental - software not delivered in a ‘big- bang!’ • Iterative - development process repeated many times till the desired end-result is achieved. • Flexible- changes from clients are accommodated • Adaptable- lean more to right than left & vice-versa • Transparent - encourages client/user involvement • Simple - easily adopted by development teams Agile Software Development With UML 4
- 5. Agile Software Development, Main Features Agile Software Development With UML 5
- 6. UML – Unified Modeling Language • ‘The Unified Modeling Language™ - UML - is OMG's most-used specification, and the way the world models not only application structure, behavior, and architecture, but also business process and data structure.’ - Object Management Group (OMG) • UML – ‘a notation, both visual and textual, used to model (i.e. describe) various aspects of software and business systems as well processes.’ – John O. Iyaniwura. Agile Software Development With UML 6
- 7. Benefits Of Adopting UML • Reduction in time/effort required to enhance software • Reduction in cost of correcting errors, i.e. ‘bugs’ • Reduction in time spent building software: re-use • Increase in the quality of delivered software • Enables communication as design ‘lingua franca’ • Benefits from automated support, reducing errors/bugs, correctness: CASE tools. Agile Software Development With UML 7
- 8. UML, Key Components • UML Structure Agile Software Development With UML 8
- 9. Agile + UML = Pragmatic Software Development • Software developed with an agile approach together with UML models results in – customer satisfaction through early and continuous delivery of valuable software – the accommodation of changing requirements even late in development – frequent delivery of working software, from a couple of weeks to a couple of months – the promotion of sustainable development • The pragmatism of this approach has endeared it to software development teams wary of heavy-weight processes e.g. SDLC, Waterfall, Unified Process etc. Agile Software Development With UML 9
- 10. Summary • Agile software development is a light-weight development process • Agile software development yields software incrementally and in iterations • The Unified Modelling Language (UML) is a notation for creating models of software artefacts • UML is globally adopted, supported by CASE tools, and improves software quality • The combination of agile software development and UML results in software that more closely meets the requirements of clients Agile Software Development With UML 10
- 11. References • Agile Manifesto: http://agilemanifesto.org/ • Principles behind Agile development: http://agilemanifesto.org/principles.html • The Unified Modeling Language: http://www.uml.org/ • Agile Modeling: http://www.agilemodeling.com/ • Scrum: http://www.scrum.org/ • All last accessed on 09/10/2012 Agile Software Development With UML 11
- 12. Questions? Agile Software Development With UML 12
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