Processes need to be captured in a structured way in order to analyze them by using computer-assisted methods. This circumstance becomes more important as the process becomes complex. Although there are standardized formats, they do not capture semantics of input/output parameters, involved persons or references to external data sources. Existing solutions provide tools to capture processes locally and specify new properties to extend the semantics of process languages. However, a collaborative platform to capture, discuss and share information is more advantageous, because processes are usually used and maintained collaboratively. In addition, users cannot define own semantics for their use-case scenarios and the proposed semantics and processes are not published according to the Linked Data principles. To address these problems we 1) provide an open-source tool to capture BPMN processes graphically in a Semantic MediaWiki; 2) allow users to define own semantics and 3) publish the information according to the Linked Data principles.