The business case for collocated requirements workshops

From Requirements by Collaboration: Workshops for Defining Need

By Ellen Gottesdiener

A quantified business case for having a collocated requirements meeting at the start of all projects (quoted from Chapter 12):

Well-designed and well-executed workshops are the most effective and stable way to define user requirements (Jones, 2000). Data supports the assertion that the use of requirements workshops increases quality and reduces costs. Requirements workshops can :
  • Reduce the risk of scope creep from 80 percent to 10 percent, and to 5 percent when combined with prototyping (Jones, 1996a)
  • Cut requirements creep in half (Jones, 2000)
  • Cut the elapsed time of requirements specification by 20 percent to 60 percent, and total project effort by 20 percent to 60 percent (August, 1991)
  • Provide a 5 percent to 15 percent overall savings in time and effort for the project as a whole (Jones, 1996a)
  • Reduce defects delivered in software by 20 percent (Jones, 1996a)
  • Reduce project failure and cancellation rates by about 50 percent (Jones, 1996a)
  • As a customer-oriented requirements gathering practice, increase productivity by 10 to 50 percent (Vosburgh et al, 1984)
  • Provide a 10-to-1 return on investment ($10 for every $1 invested; Jones, 1996a)
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About Jason Furnell

design thinker . experience designer . lo-fi sketcher . workshop facilitator . visual thinker . diagrammer . agile believer . multidisciplinary collaborator . build sequencer . incrementing and iterating . architecting information . presenting and pitching . master of design (its a degree, not a self assigned title) . dyslexic . misspell-er of many many many things....
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One Response to The business case for collocated requirements workshops

  1. Mike says:

    Interesting stats!

    I’d love to read more on the practices used by those involved in these studies.

    Links?

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