• Client - consumer of live timing data.
  • CTD format - Common Timing Data format, as detailed on this site.
  • Master router - the central node of the timing network. Responsible for passing data from service processes to relay nodes and for orchestration of other WAMP components.
  • Relay - a process that subscribes to timing data updates, and passes them on to clients subscribed to the relay.
  • Service - a process that obtains timing data from an upstream source, converts it to the CTD format, and publishes it over the timing network.
  • Service manifest - a description of the contents of state messages from a service process. See Service manifest
  • Upstream source - live timing data provider, typically based at the track; think Al Kamel, TimeService, etc.
  • WAMP - Web Application Messaging Protocol, an open-standard WebSocket subprotocol with publish/subscribe and remote procedure calling.