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Situational and Task Characteristics Systematically Associated with Accuracy of Software Development Effort Estimates
Abstract
Estimation skill is only one, out of many, factors that potentially impacts the accuracy of software development effort estimates. In this paper we examine how the size of the development task, the contract type (fixed-price versus per hour payment), the task priorities (time-of-delivery, quality, or cost), and the difference between estimating own and other peoples work, impact estimation accuracy. We found that an understanding of these factors could be important to explain the variance of estimation accuracy and, consequently, important when deciding on estimation improvement actions based on estimation accuracy measurement.
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