Please use this identifier to cite or link to this item: https://hdl.handle.net/10419/89303 
Title (translated): 
Micro-dynamics of free and open source software development: Lurking, laboring and launching new projects on SourceForge
Year of Publication: 
2007
Series/Report no.: 
LEM Working Paper Series No. 2006/26
Publisher: 
Scuola Superiore Sant'Anna, Laboratory of Economics and Management (LEM), Pisa
Abstract: 
A systems analysis perspective is adopted to examine the critical properties of the Free/Libre/Open Source Software (FLOSS) mode of innovation, as reflected on the SourceForge platform (SF.net). This approach re-scales March's (1991) framework and applies it to characterize the innovation system of a distributed organization of interacting agents in a virtual collaboration environment, rather than to innovation within a firm. March (1991) views the process of innovation at the organizational level as the coupling of sub-processes of exploration and exploitation. Correspondingly, the innovation system of the virtual collaboration environment represented by SF.net is an emergent property of two coupled processes: one involves the interactions among agents searching the locale for information and knowledge resources to use in designing novel software products (i.e., exploration), and the other involves the mobilization of individuals' capabilities for application in the software development projects that become established on the platform (i.e., exploitation). The micro-dynamics of this system are studied empirically by constructing transition probability matrices representing the movements of 222,835 SF.net users among 7 different activity states, which range from lurking (not contributing or contributing to projects without becoming a member) to laboring (joining one or more projects as members), and to launching (founding one or more projects) within each successive 6-month interval. The estimated probabilities are found to form first-order Markov chains describing ergodic processes. This makes it possible the computation of the equilibrium distribution of agents among the states, thereby suppressing transient effects and revealing persisting patterns of project-joining and projectlaunching. The latter show the FLOSS innovation system on SF.net to be highly dissipative: a very large proportion of the registered developers fail to become even minimally active on the platform. There is nevertheless an active core of mobile project-joiners, and a (still smaller) core of project founders who persist in creating new projects. The structure of these groups' interactions (as displayed within the 3-year period examined) is investigated in detail, and it is shown that it would be sufficient to sustain both the exploration and exploitation phases of the platform's global dynamics.
Subjects: 
innovation systems
collaborative development environments
industrial districts
exploration and exploitation dynamics
open source software
FLOSS
SourceForge
project-joining
project-founding
Markov chain analysis
Document Type: 
Working Paper

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