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 Studies

  • 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

    We validated our raw data and our interpreted findings with each interviewee

    We use a number of quotes from the interview to illustrate our findings

    The XP Customer Role in Practice Martin, Biddle & NobleSlide *Method

  • ProjectEndeavourThe XP Customer Role in Practice Martin, Biddle & NobleSlide *Intranet content - outsourced XP project

    Three New Zealand organisations were involved: KiwiCorp - client DevCorp development vendor BureauCorp infrastructure vendor

    The project has previously been tried and failed

    The XP Customer is a KiwiCorp librarian. She had access to specialist support: Prioritisation decisions KiwiCorp Manager Acceptance testing KiwiCorp Testers Writing user stories DevCorp Analyst

    Non-standard XP implementation, an up-front requirements phase occurred

  • Scientific software product - XP project

    RavenCorp is a start-up company based in the U.S.

    Project is to move an academic concept to a commercial product

    The 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 specialist

    But he also had to undertake multiple roles including programmer and development manager

    All XP practices have been followed, planning process was modified to reduce meeting length

    Project DiscoveryThe XP Customer Role in Practice Martin, Biddle & NobleSlide *

  • Application development tool - XP project

    EagleCorp is a U.S. software product company

    Project is to redevelop their flagship product

    The XP Customer is an existing product manager

    He had access to specialist support: User interface design user interface designer Architecture + technical requirements architect User guide development technical writer Testing quality assurance team

    All XP practices have been followed, personas were utilised to assist with user story development

    ProjectAtlantisThe XP Customer Role in Practice Martin, Biddle & NobleSlide *

  • The XP Customer must be supported by other organisation & project roles

    Varies in each case as each customer had different strengths and weaknesses

    The XP Customer needs more practices and techniques to support their role

    Particularly requirements gathering and decomposition techniques

    The importance of prioritisation is something that is learnt by experience

    The 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, KiwiCorp

    Ive always worked at least 70, [or] 80 [hours a week] ... I dont even mind it, its like what I do Customer, RavenCorp

    The 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, EagleCorp

    ResultsThe XP Customer Role in Practice Martin, Biddle & NobleSlide *

  • The XP Customer role is difficult and requires serious consideration

    The existing XP Customer practices appear to be achieving excellent results

    However, we have found that the XP customer is consistently under significantly more pressure than the developers or other project participants

    Leading us to question the sustainability of this role, particularly on long or high-pressure projects

    XP 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

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