Message mapping between control interfaces and sound engines is an important task that could benefit from tools that streamline development. A new Open Sound Control (OSC) namespace called Nexus Data Exchange Format (NDEF) streamlines message mapping by offering developers the ability to manage sound engines as network nodes and to query those nodes for the messages in their OSC address spaces. By using NDEF, developers will have an eas-ier time managing nodes and their messages, especially for scenarios in which a single application or interface controls multiple sound engines. NDEF is currently implemented in the JunctionBox interaction toolkit but could easily be implemented in other toolkits.