收集了Tomcat 6项目从2006—2010年10个版本的开发者修改日志和邮件列表信息,分析各个版本下开发者网络中开发者的活跃度演化趋势,从中提取典型的角色演化模式,并对比不同演化模式的开发者在特定工作类型上的贡献程度。实验结果表明,开发者网络中存在5种典型的角色演化模式,而且不同演化模式下的开发者从事的工作类型也有所不同。
In this paper, we collect developers′ logs and mailing list information of 10 versions from Tomcat 6 during the time ranges from 2006 to 2010.Then we perform an evolution analysis on developers′ activities. According to the trend of developers′ activities, we extract typical evolutional patterns. Finally, a comparison between developers′ contribution to the specific work and different evolution patterns is made. The results show that five typical evolution patterns exist in the developers network and those developers under different evolution patterns engage different work.
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