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eXtreme Programming and Open Source engineering paradigm. A comparison sankarshan@softhome.net. Slides and paper to be available at the iLUG-Calcutta website. www.ilug-cal.org. Introduction . Cross organisational and geographical collaboration and co-operative effort
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eXtreme Programming and Open Source engineering paradigm A comparison sankarshan@softhome.net
Slides and paper to be available at the iLUG-Calcutta website www.ilug-cal.org
Introduction • Cross organisational and geographical collaboration and co-operative effort • Need to implement an “agile” distributed methodology • Comparison of the 2 paradigms with respect to common grounds and conflicts
eXtreme Programming • an “agile” software engineering methodology • defined by Kent Beck in the early ’90s • software “best practices” taken to the eXtreme • rapid response to requirement changes • small to medium sized developer teams
eXtreme Programming Four basic values • Communication • Feedback • Simplicity • Courage
eXtreme “Best Practices” • the planning game • small iterative releases • metaphor • testing • simple design • refactoring
eXtreme “Best Practices” • Pair Programming • Collective ownership • Continuous integration • On-site customer • Coding standards • 40-hour week
OpenSource paradigm • original roots in the hacker culture of the early 1960s • considerable success in projects incl the Linux Kernel, Apache webserver, Mozilla browser etc • Source code is shared
OpenSource paradigm • provides source code that is allowed to be studied, modified and redistributed • enforced by software licensing policy • not a defined ‘standard’ methodology • possesses unique character and values
OpenSource Practices • distributed development model • shared code • small releases • continuous integration • code reuse • coding standards
Reflections • Common values: • Communication • Feedback • Simplicity • “The way programmers like to work” • Strong XP and OS communities
References • Kent Beck: ‘eXtreme Programming explained - Embrace change’ISBN: 0201616416 • K Beck, M Fowler: ‘Planning Extreme Programming’ISBN: 0201710919 • E S. Raymond, B Young: ‘The Cathedral and the Bazaar’ISBN: 0596001088 • ‘Open Sources: Voices from the Open Source Revolution’ISBN: 1565925823