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Simplified approach to effort estimation in software maintenance
2012
Journal of Systems Integration
This article introduces software support and maintenance from effort estimation perspective. Software maintenance is a set of activities needed for cost-effective support of IT solution. More or less, delivery strategies and best practices focus mostly on delivery process and only some of them partially cover effort estimation. Magne Jørgensen in his work formulated conclusions that 83 to 84% of all estimation is done by pure expert estimates and estimating models are not used basically due to
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