Application of Function Points to Software Based on Open Source: A Case Study

Moulla, Donatien Koulla; Damakoa, Irépran; Kolyang, Dina Taiwe

doi:10.1109/iwsm.mensura.2014.15

Cited by 3 publications

(2 citation statements)

References 9 publications

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“…To the best of our knowledge, the identification of developer types in this way is novel. Moulla et al (2013Moulla et al ( , 2014 applied the COCOMO model to the TRIADE (version 7a) FOSS project, using LOCs and regression models with COSMIC Function Points as the independent variable (Dumke and Abran 2016;Abran et al 2016). They reported that in terms of effort, development of software based on FOSS has advantages over development from scratch.…”

Section: Applicability Of Traditional Effort Estimation Techniques To...mentioning

confidence: 99%

Development effort estimation in free/open source software from activity in version control systems

et al. 2022

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Effort estimation models are a fundamental tool in software management, and used as a forecast for resources, constraints and costs associated to software development. For Free/Open Source Software (FOSS) projects, effort estimation is especially complex: professional developers work alongside occasional, volunteer developers, so the overall effort (in person-months) becomes non-trivial to determine. The objective of this work it to develop a simple effort estimation model for FOSS projects, based on the historic data of developers’ effort. The model is fed with direct developer feedback to ensure its accuracy. After extracting the personal development profiles of several thousands of developers from 6 large FOSS projects, we asked them to fill in a questionnaire to determine if they should be considered as full-time developers in the project that they work in. Their feedback was used to fine-tune the value of an effort threshold, above which developers can be considered as full-time. With the help of the over 1,000 questionnaires received, we were able to determine, for every project in our sample, the threshold of commits that separates full-time from non-full-time developers. We finally offer guidelines and a tool to apply our model to FOSS projects that use a version control system.

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Section: Applicability Of Traditional Effort Estimation Techniques To...mentioning

confidence: 99%

Development effort estimation in free/open source software from activity in version control systems

et al. 2022

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“…Moulla et al [41,42] applied the COCOMO model to the TRIADE (version 7a) FOSS project, using LOCs and regression models with COSMIC Function Points as the independent variable [18,2]. They reported that in terms of effort, development of software based on FOSS has advantages over development from scratch.…”

Section: Applicability Of Traditional Effort Estimation Techniques To...mentioning

confidence: 99%

Development Effort Estimation in Free/Open Source Software from Activity in Version Control Systems

Robles¹,

Capiluppi²,

González-Barahona³

et al. 2022

Preprint

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Effort estimation models are a fundamental tool in software management, and used as a forecast for resources, constraints and costs associated to software development. For Free/Open Source Software (FOSS) projects, effort estimation is especially complex: professional developers work alongside occasional, volunteer developers, so the overall effort (in person-months) becomes non-trivial to determine.The objective of this work it to develop a simple effort estimation model for FOSS projects, based on the historic data of developers' effort. The model is fed with direct developer feedback to ensure its accuracy.After extracting the personal development profiles of several thousands of developers from 6 large FOSS projects, we asked them to fill in a questionnaire to determine if they should be considered as full-time developers in the project that they work in. Their feedback was used to fine-tune the value of an effort threshold, above which developers can be considered as full-time.With the help of the over 1,000 questionnaires received, we were able to determine, for every project in our sample, the threshold of commits that separates full-time from non-full-time developers.We finally offer guidelines and a tool to apply our model to FOSS projects that use a version control system.

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Duration Estimation Models for Open Source Software Projects

Moulla¹,

Abran²,

Kolyang³

2021

IJITCS

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For software organizations that rely on Open Source Software (OSS) to develop customer solutions and products, it is essential to accurately estimate how long it will take to deliver the expected functionalities. While OSS is supported by government policies around the world, most of the research on software project estimation has focused on conventional projects with commercial licenses. OSS effort estimation is challenging since OSS participants do not record effort data in OSS repositories. However, OSS data repositories contain dates of the participants’ contributions and these can be used for duration estimation. This study analyses historical data on WordPress and Swift projects to estimate OSS project duration using either commits or lines of code (LOC) as the independent variable. This study proposes first an improved classification of contributors based on the number of active days for each contributor in the development period of a release. For the WordPress and Swift OSS projects environments the results indicate that duration estimation models using the number of commits as the independent variable perform better than those using LOC. The estimation model for full-time contributors gives an estimate of the total duration, while the models with part-time and occasional contributors lead to better estimates of projects duration with both for the commits data and the lines of data.

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Application of Function Points to Software Based on Open Source: A Case Study

Cited by 3 publications

References 9 publications

Development effort estimation in free/open source software from activity in version control systems

Development effort estimation in free/open source software from activity in version control systems

Development Effort Estimation in Free/Open Source Software from Activity in Version Control Systems

Duration Estimation Models for Open Source Software Projects

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