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We describe a current study for obtaining information about management of commercial and community open source projects. We have interviewed and surveyed leaders of more than 75 open source projects. Questions focused on the styles of leadership and communication, with a technical focus on testing and quality assurance processes. This paper describes the methods used to identify and contact subjects,...
This paper reviews literature on quality and usability assurance in open source software (OSS) development, focusing specifically on OSS that is targeted at a large user population, which does not consist only of OSS developers anymore. In this type of OSS development, the 'naive', non computer professional users should be taken into account and usability of OSS improved. Furthermore, software quality...
Evidence suggests that only a small percentage of open source development (OSSD) projects are active, have significant participation, or have delivered operational software. We develop a system dynamics based simulation model to analyze the dynamics of open source project participation process and software development process. We show that the complex interaction between participation and development...
Various research approaches have been proposed to study the OSS movement. To facilitate this OSS related research, we designed and implemented an online research collaborator)!. It is not only a repository including over two years of monthly database dumps from SourceForge.net, but also an online community supporting OSS related research. We describe the design and implementation of the research collaboratory...
Open source projects are an interesting source for software engineering education and research. By participating in open source projects students can improve their programming and design capabilities. By reflecting on own participation by means of an established research method and plan, master's students can in addition contribute to increase knowledge concerning research questions. In this work...
In 2006 the author undertook to take what I'd learnt from the research on Free, Libre and Open Source Software (FLOSS) both to 'the community' and to those interested in joining 'the community'. I prepared and presented two 3.5 hour tutorials at FLOSS conferences: LinuxAsia in Delhi and O'Reilly's Open Source Conference (OSCON) in Portland. This paper describes these experiences. The author first...
We are exploring the practice of large-scale reuse involving at least a group of source code files. Our research question is to determine the extent of such reuse occurring in open source projects, to identify the code that is reused the most, and to investigate patterns of large-scale reuse. We start by identifying a sample of projects involving all code in several large repositories of open source...
Brooks and others long ago suggested that on average computer programmers write the same number of lines of code in a given amount of time regardless of the programming language used. We examine data collected from the CVS repositories of 9,999 open source projects hosted on SourceForge.net to test this assumption for 10 of the most popular programming languages in use in the open source community...
Albeit practical reuse approaches have been established in commercial environments, the open source software (OSS) communities have not yet taken full advantage of the reuse mechanism. Many OSS projects, sharing the same application domain and topic, duplicate effort and code, without fully leveraging the vast amounts of available code. In order to fill these gaps, this study focuses on source code...
Suppose the entire social and commercial fabric supporting the creation of software is changing-changing by becoming completely a commons and thereby dropping dramatically in cost. How would the world change and how would we recognize the changes? Software would not be continually recreated by different organizations, so the global "efficiency" of software production would increase dramatically;...
Free/Libre and Open Source Software (FLOSS) projects are a form of commons where individuals work collectively to produce software that is a public, rather than a private, good. The famous phrase "Tragedy of the Commons" describes a situation where a natural resource commons, such as a pasture, or a water supply, gets depleted because of overuse. The tragedy in FLOSS commons is distinctly...
We propose to research the introduction of Software Engineering inventions into Open Source projects (1) to help researchers with creating opportunities for evaluating their tools, methods and process designs in real-life settings, and (2) to help Open Source projects with improving their processes based on state-of-the-art knowledge. Such research will go beyond diffusion and dissemination of inventions...
At present, more and more commercial firms are getting involved, to various extents, in the Open Source (OS) movement. While several studies have examined incentives and business models of these OS-based software companies, very few works have investigated whether and how firms actively participate to open projects. This paper contributes to the literature by providing empirical evidence on the role...
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