The reality behind Extreme Programming – the … Extreme...Extreme Programming Links 4 mayo 4,...
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Transcript of The reality behind Extreme Programming – the … Extreme...Extreme Programming Links 4 mayo 4,...
mayo 4, 2002 Frank Bergmann <[email protected]>2
Content
Frank Bergmann is availableas a freelance consultant.
mayo 4, 2002 Frank Bergmann <[email protected]>3
Content
� Problems with IT Projects� Where is the Problem?� The problem according to Alan Cooper� Measures� Extreme Programming� Links
mayo 4, 2002 Frank Bergmann <[email protected]>4
Problems with IT Projects
Some Statistics� Only 20% in time and budget� 40% never become operative� Deviations up to 200% normal
=> Disastrous situation
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Where is the Problem?
Client Analyst PM Dev. User
System
CEO Dept.
Stategy /Impl.
Goals/Budget
Service/Money
Analysis/Dev.
New/Old
Strategy Tactics Biz Needs Tech Needs User Needs
StakeHolders
Domains
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The ProblemAccording to Alan Cooper*
� „It‘s my experience thatneither users nor customerscan articulate what it is theywant, nor can they evaluateit when they see it.“
* http://www.fawcette.com/interviews/beck_cooper/
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The ProblemAccording to Alan Cooper*
� „We have a significantorganizational problem, butwe can‘t fix it.“
� „Essentially, the crap rollsdownhill and ends up rollingright into the programmerslap.“
* http://www.fawcette.com/interviews/beck_cooper/
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The ProblemAccording to Alan Cooper*
Client Analyst PM Dev. User
System
CEO Dept.
StakeHolders
Spheres„Emotional“ „Em.“
How to use „logical tools“ toanalyze the „human issues“?
„How can we get ridof all this task crap?"
„Logicians“
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Project Manager
The PM is the onlyconflict mediator
Separate Profiles:The normality
Client Analyst PM Dev. User
System
CEO Dept.
Strategy Tactics Biz Needs Tech Needs User Needs
StakeHolders
Domains
ProfilesFunc. Ana. Dev. UserBiz Ana./
Consultant
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The team membersunderstand each otherslanguages and issues
OverlappingProfiles
Client Analyst PM Dev. User
System
CEO Dept.
Strategy Tactics Biz Needs Tech Needs User Needs
StakeHolders
Domains
Profiles
Dev.
User
Project Manager
Func AnaBiz Ana.
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OverlappingProfiles
� But there are few such:–Analysts–PMs and–Developers
� And they are expensive...
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Frequent Iterations
Client Analyst PM Dev. User
System
� Iterations serve totransmit informationacross the conflictboundaries
� The (powerful!) clientparticipates in theproject team.
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The Client Learns
Client Analyst PM Dev. User
System
� About technecessities
� What is techniclypossible and whatnot
� Sees progress
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The Team Learns
Client Analyst PM Dev. User
System
� About biz necessities
� Improve estimations
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12 Core Practices*
Team Best Practices� Coding standards� Collective code
ownership� Open workspace� 40-hour week� Pair programming
Arch. Best Practices� Functional testing and
unit testing� Refactoring� Continuous integration
of changes� Simple code metaphors� Simple design
Client Handling� Planning with clients� Clients on site
* http://www.extremeprogramming.org
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Client Handling
Client Analyst PM Dev. User
System
Analysis
Planning
Development
Test
Operating
Planning with Clients
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Client Handling
Client Analyst PM Dev. User
System
Analysis
Planning
Development
Test
Operating
Client on Site
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Team Best Practices
Client Analyst PM Dev. User
System
Analysis
Planning
Development
Test
Operating
Coding Stds.
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Team Best Practices
Client Analyst PM Dev. User
System
Analysis
Planning
Development
Test
Operating
CodeOwnership
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Team Best Practices
Client Analyst PM Dev. User
System
Analysis
Planning
Development
Test
Operating
PairProgramming
mayo 4, 2002 Frank Bergmann <[email protected]>24
Architecture Best Practices
Client Analyst PM Dev. User
System
Analysis
Planning
Development
Test
Operating
Refactoring
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Architecture Best Practices
Client Analyst PM Dev. User
System
Analysis
Planning
Development
Test
Operating
ContinuousIntegrations
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Architecture Best Practices
Client Analyst PM Dev. User
System
Analysis
Planning
Development
Test
Operating
Functional &Unit Testing
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Links and References
� The Official Site:http://www.extremeprogramming.org/
� The Interview:http://www.fawcette.com/interviews/beck_cooper/
=> Check for „Software Engineering“ and read on.
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http://www.fraber.de/mailto:[email protected]: +34 609 953 751
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