2013 - Strøm 5 - Frode Nordheim - Men fossefallsmetoden var ikke død, en sørgelig historie med stadig flere akter
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This document discusses a complex IT project at Kongsberg Maritime that faced significant delays and cost overruns. The project was originally estimated using a waterfall approach, but faced issues due to technical complexity, organizational complexity, and uncertainty. Over time, the project grew in scope, timeline and costs. Lessons learned included using more agile and incremental processes instead of waterfall when there is uncertainty and complexity, as well as improving requirements specification, estimation practices, testing, and communication.
2013 - Strøm 5 - Frode Nordheim - Men fossefallsmetoden var ikke død, en sørgelig historie med stadig flere akter
- 1. Men fossefallsmetoden var ikke død En sørgelig historie med stadig flere akter KONGSBERG PROPRIETARY: This document contains KONGSBERG information which is proprietary and confidential. Any disclosure, copying, distribution or use is prohibited if not otherwise explicitly agreed with KONGSBERG in writing. Any authorised reproduction in whole or in part, must include this legend. © 2013 KONGSBERG – All rights reserved.
- 2. Agenda • • • • • • Introduksjon Hvordan det gikk til slutt – tid, kostnad og omfang Hva skjedde med fossefallet? Løsningen og prosjektorganisasjonen Tiltak underveis Langsiktige tiltak 22.10.2013 WORLD CLASS - through people, technology and dedication Page 2
- 3. Introduksjon • Frode Nordheim – Prosjektleder i Kongsberg Maritimes IT-avdeling siden november 2011 – Leder komplekse interne forbedringsprosjekter for forretningsstøttesystemer – Prosjektlederutdanning fra Metier Academy – Mastergrad i Informatikk fra Universitetet i Oslo • Prosjektet – Visjon: Global ressursstyring – Mål: Mer presise prosjektleveranser 22.10.2013 WORLD CLASS - through people, technology and dedication Page 3
- 4. Omfang Tid Kostnad Den kjente trekanten 22/10/2013 WORLD CLASS - through people, technology and dedication. Page 4
- 5. Omfang Tid: x 4 Kostnad: x 21 Hvordan det gikk… 22/10/2013 WORLD CLASS - through people, technology and dedication. Page 5
- 6. 18. oktober 2010 …2012 …2011 8. april 2013 Og vi går live… 22.10.2013 WORLD CLASS - through people, technology and dedication Page 6
- 7. Krav Funksjonell løsning Teknisk løsning Implementering Test Installasjon Fossefallet – slik det burde være 22/10/2013 WORLD CLASS - through people, technology and dedication. Page 7
- 8. Krav Funksjonell løsning Teknisk løsning Implementering Test Installasjon Høst 2009 Vår 2010 April 2013 November 2011 Fossefallet – slik det så ut til å være seint 2011 22/10/2013 WORLD CLASS - through people, technology and dedication. Page 8
- 9. Krav Funksjonell løsning Teknisk løsning Implementering Test Installasjon Høst 2009 Vår 2010 April 2013 November 2011 Fossefallet – slik det viste seg å være 22/10/2013 WORLD CLASS - through people, technology and dedication. Page 9
- 10. Krav Funksjonell løsning Januar 2012 Teknisk løsning Implementering Funksjonell løsning Test Installasjon Høst 2009 Vår 2010 April 2013 November 2011 Fossefallet – slik vi endte opp 22/10/2013 WORLD CLASS - through people, technology and dedication. Page 10
- 11. Estimation error creeps into estimates from four generic sources: • Inaccurate information about the project being estimated • Inaccurate information about the capabilities of the organization that will perform the project • Too much chaos in the project to support accurate estimation (that is, trying to estimate a moving target) • Inaccuracies arising from the estimation process itself Steve McConnell (Software Estimation – Demystifying the Black Art, Microsoft Press, 2006) 22.10.2013 WORLD CLASS - through people, technology and dedication Page 11
- 12. The Cone of Uncertainty 22.10.2013 WORLD CLASS - through people, technology and dedication Page 12
- 13. The Cone of uncertainty does not narrow itself 22.10.2013 WORLD CLASS - through people, technology and dedication Page 13
- 14. The Cloud of Uncertainty 22/10/2013 Page 14 WORLD CLASS -
- 15. Master Data Cache HR DATAKVALITET BizTalk Hours Accounting ERP Active Directory MS Project Server MS Project Teknisk kompleksitet 22.10.2013 WORLD CLASS - through people, technology and dedication Page 15
- 16. Organisatorisk kompleksitet 22.10.2013 WORLD CLASS - through people, technology and dedication Page 16
- 17. 22.10.2013 WORLD CLASS - through people, technology and dedication Page 17
- 18. 22.10.2013 WORLD CLASS - through people, technology and dedication Page 19
- 19. Fra oppgavestyring per epost til Team Foundation Server 22.10.2013 WORLD CLASS - through people, technology and dedication Page 20
- 20. Tettere kommunikasjon Asynkron Synkron Ingen jakt på syndebukker 22.10.2013 WORLD CLASS - through people, technology and dedication Page 21
- 22. 22.10.2013 WORLD CLASS - through people, technology and dedication Page 23
- 23. Requirement Specification High level solution design Implementation Requirements System test Deployment Detailed requirements Deployment Functional specification Test Technical design Implementation 22.10.2013 WORLD CLASS - through people, technology and dedication Page 24
- 24. Læring • Metodikk og metodekompetanse – Krav- og løsningsspesifisering – Estimering – Test • Kommunikasjon – Hyppig – Direkte • Fossefallsmetoden – Kan brukes når usikkerhet og kompleksitet er lav – For øvrig: Bruk smidige og/eller inkrementelle prosesser 22.10.2013 WORLD CLASS - through people, technology and dedication Page 25
- 25. kongsberg.com