In order to address the lack of vocabulary development support, we designed VoCol, a low-threshold agile methodology for collaborative vocabulary devel- opment. Inspired by agile software and content development methodologies, we define the VoCol methodology to address these requirements. We implemented a prototype based on a loose coupling of collaboration, authoring, project man- agement, validation, documentation and visualization generation components on top of a standard Git repository. All of these components, even the repos- itory engine, can be exchanged with little effort to cater for specific use cases. Through its continuous vocabulary component integration and verification func- tions, VoCol can be seen as an analogon to continuous integration in software engineering. You can find more on our technical report.