The XP Customer Role in Practice: Three Case Studies

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The XP Customer Role in Practice: Three Case Studies. Method. We used interpretative in-depth case studies We obtained multiple perspectives, from the customer, developers and business people We used semi-structured one-on-one interviews to collect the data - PowerPoint PPT Presentation

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The XP Customer Role in Practice:Three Case StudiesWe used interpretative in-depth case studiesWe obtained multiple perspectives, from the customer, developers and business peopleWe used semi-structured one-on-one interviews to collect the data We validated our raw data and our interpreted findings with each intervieweeWe use a number of quotes from the interview to illustrate our findingsThe XP Customer Role in Practice Martin, Biddle & NobleSlide *MethodProjectEndeavourThe XP Customer Role in Practice Martin, Biddle & NobleSlide *Intranet content - outsourced XP projectThree New Zealand organisations were involved: KiwiCorp - client DevCorp development vendor BureauCorp infrastructure vendorThe project has previously been tried and failedThe XP Customer is a KiwiCorp librarian. She had access to specialist support: Prioritisation decisions KiwiCorp Manager Acceptance testing KiwiCorp Testers Writing user stories DevCorp AnalystNon-standard XP implementation, an up-front requirements phase occurredScientific software product - XP projectRavenCorp is a start-up company based in the U.S.Project is to move an academic concept to a commercial productThe XP Customer is one of the founding research scientists and has had access to specialist support: Product concept & vision founding director Testing research scientists + testing specialistBut he also had to undertake multiple roles including programmer and development managerAll XP practices have been followed, planning process was modified to reduce meeting lengthProject DiscoveryThe XP Customer Role in Practice Martin, Biddle & NobleSlide *Application development tool - XP projectEagleCorp is a U.S. software product companyProject is to redevelop their flagship productThe XP Customer is an existing product managerHe had access to specialist support: User interface design user interface designer Architecture + technical requirements architect User guide development technical writer Testing quality assurance teamAll XP practices have been followed, personas were utilised to assist with user story developmentProjectAtlantisThe XP Customer Role in Practice Martin, Biddle & NobleSlide *The XP Customer must be supported by other organisation & project rolesVaries in each case as each customer had different strengths and weaknesses The XP Customer needs more practices and techniques to support their roleParticularly requirements gathering and decomposition techniquesThe importance of prioritisation is something that is learnt by experienceThe KiwiCorp and RavenCorp customers did not fully grasp the need to prioritise until the end ResultsThe XP Customer Role in Practice Martin, Biddle & NobleSlide *Is it sustainable?We probably needed about three of me its been my life for about a year look at these grey hairs Customer, KiwiCorpIve always worked at least 70, [or] 80 [hours a week] ... I dont even mind it, its like what I do Customer, RavenCorpThe iteration processes are quite exhausting. Every two weeks you are doing another product release so its a very intense process to maintain I think its worked very well, but I dont know how long it will be possible to keep this pace up Customer, EagleCorpResultsThe XP Customer Role in Practice Martin, Biddle & NobleSlide *The XP Customer role is difficult and requires serious considerationThe existing XP Customer practices appear to be achieving excellent resultsHowever, we have found that the XP customer is consistently under significantly more pressure than the developers or other project participantsLeading us to question the sustainability of this role, particularly on long or high-pressure projectsXP has focussed on building effective development team practices: we now need to explore the processes that will support the XP customerConclusionsThe XP Customer Role in Practice Martin, Biddle & NobleSlide *AngelaMartinVictoriaUniversityWellingtonNew ZealandRobert BiddleJames NobleThe XP Customer Role in Practice:Three Case Studies