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Software Project Estimates – How Accurate Are They?

$63.95

Format: Downloadable file
Updated: 2012

Categories: Reports, Subscriber Reports Tag: Reports
  • Description

Description

We look at estimates of size, effort, duration and cost; how people have gone about estimating their projects; the accuracy of the estimates and the relationships between estimates. Here are some of the findings:

  • Size estimates are usually based on a data model; functional specification or analogy with a previous project
  • Project effort estimates are only accurate for less than a quarter of projects
  • Despite effort being poorly estimated 51% of projects were delivered on time
  • When functional size-based techniques are used for a cost estimate, the estimate is within 20% of the actual cost 90% of the time.

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