<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>47</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Guido Conaldi</style></author><author><style face="normal" font="default" size="100%">Tonellato, Marco</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">A Longitudinal Study on Collaboration Networks and Decision to Participate in a FLOSS Community</style></title><secondary-title><style face="normal" font="default" size="100%">5th Workshop on Public Data about Software Development (WoPDaSD 2010)</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">bicho</style></keyword><keyword><style  face="normal" font="default" size="100%">bug fixing</style></keyword><keyword><style  face="normal" font="default" size="100%">bug reports</style></keyword><keyword><style  face="normal" font="default" size="100%">bugzilla</style></keyword><keyword><style  face="normal" font="default" size="100%">COLLABORATION</style></keyword><keyword><style  face="normal" font="default" size="100%">developers</style></keyword><keyword><style  face="normal" font="default" size="100%">epiphany</style></keyword><keyword><style  face="normal" font="default" size="100%">flossmetrics</style></keyword><keyword><style  face="normal" font="default" size="100%">gnome</style></keyword><keyword><style  face="normal" font="default" size="100%">social network analysis</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2010</style></year></dates><urls><related-urls><url><style face="normal" font="default" size="100%">http://flosshub.org/sites/flosshub.org/files/wopdasd002.pdf</style></url></related-urls></urls><abstract><style face="normal" font="default" size="100%">In this paper we conjecture that individual decisions of FLOSS (Free/Libre Open Source Software) developers to take on a task are influenced by network relations generated by collaboration among project members. In order to explore our conjecture we collected data on a FLOSS project team consisting of 227 developers committed since 2002 to the development of a web browser. We reconstructed 2-mode co- collaboration networks (software developer by bug) in which a tie represents an action taken by a developer in order to solve a specific bug. Co-collaboration networks were collected at five points in time during a six-month development cycle of the software. We report and discuss results of longitudinal actor-based modeling that we specify to test for the influence of local network structures on developer’s decision to take action on a specific bug. The study controls for bug-specific and developer-specific characteristics that may also affect developers’ decisions exogenously. We also control for priority and severity levels assigned by the team to bugs in an attempt to manage voluntary contribution.</style></abstract><notes><style face="normal" font="default" size="100%">&quot;we chose as a case of study Epiphany, which is the default web browser of the GNOME graphical desktop environment&quot;

&quot;We collected all relevant data by parsing all the bug reports in GNOME Bugzilla repository relative to Epiphany. The data collection and storing was done using Bicho (v. 0.4 rev. 7198), a software part of the FLOSSMetric project [14].&quot;</style></notes></record></records></xml>