Document Type

Article

Publication Date

2022

DOI

10.1109/ACCESS.2022.3196923

Publication Title

IEEE Access

Volume

10

Pages

83311-83321

Abstract

Effort estimation is an important practice in agile software development. The agile community believes that developers’ estimates get more accurate over time due to the cumulative effect of learning from short and frequent feedback. However, there is no empirical evidence of an improvement in estimation accuracy over time, nor have prior studies examined effort estimation in different development activities, which are associated with substantial costs. This study fills the knowledge gap in the field of software estimation in agile software development by investigating estimations across time and different development activities based on data collected from a large agile project. This study investigated effort estimation in various development activities, including feature development, bug fixing, and refactoring in agile software development. The results indicate that estimation of agile development does not improve over time, as claimed in the literature. Our data also indicate that no difference exists in the magnitude of estimation errors between feature tasks and bug-fixing/refactoring tasks, while bug-fixing and refactoring tasks are overestimated more frequently than feature tasks. This study also contributes to our knowledge about overestimation and underestimation patterns in agile software development.

Comments

IEEE is not the copyright holder to this material.

This work is licensed under a Creative Commons Attribution 4.0 International (CC BY 4.0) License.

ORCID

0000-0002-3860-7639 (Cao)

Original Publication Citation

Cao, L. (2022). Estimating efforts for various activities in agile software development: An empirical study. IEEE Access, 10, 83311-83321. https://doi.org/10.1109/ACCESS.2022.3196923

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