Empirical Effort and Schedule Estimation Models for Agile Processes in the US DoD
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Authors
Rosa, Wilson
Clark, Bradford K.
Madachy, Raymond
Boehm, Barry W.
Subjects
Agile software processes
Cost estimation
Requirements/Specification
Software acquisition
Software process
Time estimation
Cost estimation
Requirements/Specification
Software acquisition
Software process
Time estimation
Advisors
Date of Issue
2021
Date
Publisher
IEEE
Language
Abstract
Estimating the cost and schedule of agile software projects is critical at an early phase to establish baseline budgets
and schedules for the selection of competitive bidders. The challenge is that common agile sizing measures such as story
points and user stories are not practical for early estimation as these are often reported after contract award in DoD. This study
provides a set of effort and schedule estimation models for agile projects using a sizing measure that is available before
proposal evaluation based on data from 36 DoD agile projects. The results suggest that initial software requirements, defined as
the sum of functions and external interfaces, is an effective sizing measure for early estimation of effort and schedule of agile
projects. The models’ accuracy improves when application domain groups and peak staff are added as inputs.
Type
Preprint
Description
The article of record as published may be found at http://dx.doi.org/10.1109/TSE.2021.3080666
Series/Report No
Department
Systems Engineering (SE)
Organization
Naval Postgraduate School
Identifiers
NPS Report Number
Sponsors
Funding
Format
15 p.
Citation
Rosa, Wilson, et al. "Empirical Effort and Schedule Estimation Models for Agile Processes in the US DoD." IEEE Transactions on Software Engineering (2021).
Distribution Statement
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States