The increasing awareness of the topic "Open Data" in the library world opens up important questions concerning the handling of open data. This article discusses the conceptual base lines of a technical Open Data infrastructure and work out the complex requirements such an infrastructure must meet.
The covered aspects range from data publication and description to the versioning of open data. For some aspects promising points of contact are identified, e.g. in form of version control tools in the Open Source community or in form of running projects by the W3C or the Open Knowledge Foundation
