Collaboration occurs almost everywhere. The challenge today is how to succeed it. In addition, the development of digital technologies requires higher demands to succeed in collaborations and thus makes the challenge more difficult to handle. To address it properly, we study impacting factors that affect the success of collaborations and integrate them into collaboration context ontology to analyze and evaluate the success of collaborations supported by digital technologies. In this article, we present the collaboration context ontology that we have developed and show why and how it can be used.