A Review of Surveys on Software Effort Estimation

9 years 4 months ago
A Review of Surveys on Software Effort Estimation
This paper summarizes estimation knowledge through a review of surveys on software effort estimation. Main findings were that: (1) Most projects (60-80%) encounter effort and/or schedule overruns. The overruns, however, seem to be lower than the overruns reported by some consultancy companies. For example, Standish Group’s ‘Chaos Report’ describes an average cost overrun of 89%, which is much higher than the average overruns found in other surveys, i.e., 30-40%. (2) The estimation methods in most frequent use are expert judgment-based. A possible reason for the frequent use of expert judgment is that there is no evidence that formal estimation models lead to more accurate estimates. (3) There is a lack of surveys including extensive analyses of the reasons for effort and schedule overruns.
Kjetil Moløkken, Magne Jørgensen
Added 04 Jul 2010
Updated 04 Jul 2010
Type Conference
Year 2003
Authors Kjetil Moløkken, Magne Jørgensen
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