This document discusses the Content Management Interoperability Services (CMIS) standard. CMIS allows for interoperability between different content management systems by providing a common API. It addresses issues with previous standards, like being programming language specific. CMIS sees growing adoption from vendors. The standard is important for building connectors between systems and enabling multi-platform development. Nuxeo is contributing to CMIS through participation in its development and creating utility tools to facilitate its use.