Please use this identifier to cite or link to this item:
|Title:||An investigation of effort distribution among development phases: A four-stage progressive software cost estimation model||Authors:||Papatheocharous, Efi
Andreou, Andreas S.
|Major Field of Science:||Natural Sciences||Field Category:||Computer and Information Sciences||Keywords:||Four-stage progressive model;Project management;Software cost estimation||Issue Date:||21-Jun-2017||Source:||Journal of Software: Evolution and Process, 2017, vol. 29, no. 10||Volume:||29||Issue:||10||Journal:||Journal of Software: Evolution and Process||Abstract:||Software cost estimation is a key process in project management. Estimations in the initial project phases are made with a lot of uncertainty that influences estimation accuracy which typically increases as the project progresses in time. Project data collected during the various project phases can be used in a progressive time-dependent fashion to train software cost estimation models. Our motivation is to reduce uncertainty and increase confidence based on the understanding of patterns of effort distributions in development phases of real-world projects. In this work, we study effort distributions and suggest a four-stage progressive software cost estimation model, adjusting the initial effort estimates during the development life-cycle based on newly available data. Initial estimates are reviewed on the basis of the experience gained as development progresses and as new information becomes available. The proposed model provides an early, a post-planning, a post-specifications, and a post-design estimate, while it uses industrial data from the ISBSG (R10) dataset. The results reveal emerging patterns of effort distributions and indicate that the model provides effective estimations and exhibits high explanatory value. Contributions in lessons learned and practical implications are also provided.||ISSN:||2047-7473||DOI:||10.1002/smr.1881||Rights:||© Wiley||Type:||Article||Affiliation :||Cyprus University of Technology
University of Cyprus
University of Western Macedonia
Aristotle University of Thessaloniki
Swedish Institute of Computer Science
|Appears in Collections:||Άρθρα/Articles|
checked on Aug 31, 2020
WEB OF SCIENCETM
checked on Oct 26, 2020
Page view(s) 50130
checked on Oct 31, 2020
Items in KTISIS are protected by copyright, with all rights reserved, unless otherwise indicated.