Ecology and Dynamics of Open Source Communities

Ecology and Dynamics of Open Source Communities

Michael Weiss (Carleton University, Canada) and Gabriella Moroiu (Carleton University, Canada)
Copyright: © 2007 |Pages: 22
DOI: 10.4018/978-1-59904-210-7.ch003
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The goal of this chapter is to document the evolution of a portfolio of open source communities. These are communities formed around a set of related projects with common governance, which often produce artifacts shared among all projects. It helps to think of a portfolio of project communities as an ecology, in which the projects are mutually dependent, and there is both cross-project collaboration and competition for resources among the communities. As a case study, we explore the ecology of communities within the Apache project, one of the largest and most visible open source projects. We infer the community structure from developer mailing lists, and study how the communities evolve and interact over time. The analysis lends support to the often-stated hypothesis that open source communities grow by a process of preferential attachment. However, we show that the influx of external developers is not the only factor affecting community growth. The structure and dynamics of a community is also impacted by inter-project information flow, and the migration of developers between projects (including the formation of spin-offs).

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Table of Contents
Diomidis Spinellis
Sulayman K. Sowe
Chapter 1
Martin Michlmayr, Gregorio Robles, Jesus M. Gonzalez-Barahona
Most libre (free, open source) software projects rely on the work of volunteers. Therefore, attracting people who contribute their time and... Sample PDF
Volunteers in Large Libre Software Projects: A Quantitative Analysis Over Time
Chapter 2
Stefan Koch
In this chapter, we propose for the first time a method to compare the efficiency of free and open source projects, based on the data envelopment... Sample PDF
Measuring the Efficiency of Free and Open Source Software Projects Using Data Envelopment Analysis
Chapter 3
Michael Weiss, Gabriella Moroiu
The goal of this chapter is to document the evolution of a portfolio of open source communities. These are communities formed around a set of... Sample PDF
Ecology and Dynamics of Open Source Communities
Chapter 4
Andrew Schofield, Grahame S. Cooper
The role of online communities is a key element in free and open source software (F/OSS) and a primary factor in the success of the F/OSS... Sample PDF
Perceptions of F/OSS Community: Participants' Views on Participation
Chapter 5
Ruben van Wendel de Joode, Hans de Bruijn, Michel van Eeten
Open source communities bring together a dispersed collection of people, sometimes a large number of them, around the development of open source... Sample PDF
Software Development and Coordination Tools in Open Source Communities
Chapter 6
Anas Tawileh, Omer F. Rana, Wendy Ivins, Stephen McIntosh
This chapter investigates the quality issues of the free and open source software (F/OSS) development processes. It argues that software developed... Sample PDF
Evidence-Based Assurance to Support Process Quality in the F/OSS Community
Chapter 7
Benno Luthiger, Carola Jungwirth
This chapter explains why software users have good reasons to trust in the quality of OSS, even if they might have internalised the rule “If... Sample PDF
The Chase for OSS Quality: The Meaning of Member Roles, Motivations, and Business Models
Chapter 8
Walt Scacchi
This study examines the development of open source software supporting e-commerce (EC) or e-business (EB) capabilities. This entails a case study... Sample PDF
Understanding the Development of Free E-Commerce/E-Business Software: A Resource-Based View
Chapter 9
Kris Ven, Dieter Van Nuffel, Jan Verelst
Several public administrations (PA) have expressed an increasing interest in open source software in the past few years and are currently migrating... Sample PDF
The Migration of Public Administrations Towards Open Source Desktop Software: Recommendations from Research and Validation through a Case Study
Chapter 10
Francesco Di Cerbo, Marco Scotto, Alberto Sillitti, Giancarlo Succi, Tullio Vernazza
The introduction of a GNU/Linux-based desktop system in a large company is often problematic. In literature, several crucial issues represent such a... Sample PDF
Toward a GNU/Linux Distribution for Corporate Environments
Chapter 11
Donald Wynn Jr.
This study examines the concept of an ecosystem as originated in the field of ecology and applied to open source software projects. Additionally, a... Sample PDF
Assessing the Health of an Open Source Ecosystem
Chapter 12
Graham Morrison
The majority of open source projects fail. This chapter presents one such project as a case study, written from the perspective of the sole... Sample PDF
The Rise and Fall of an Open Source Project: A Case Study
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