RRC natively supports a number of notations for expressing requirements, as well as embracing files created by other tools. Files from other sources can be linked to/from, attributes can be assigned/set, tags applied, people can comment on the file. This can include just about any type of file: office documents, recordings of web conferences and conference calls, videos, mind maps, etc. Balsamic files could be part of the RRC requirements web, or for more seamless integration, the developers of Balsamic could probably make it work as a plug-in to RRC as it appears to do for various other server-based products. There is RRC sample code now available on jazz.net.