This Recommendation specifies the data syntax to be used by Videotex and Multimediaypermedia Information retrieval services for implementation of the Videotex Enhanced Man Machine Interface (VEMMI). In the Videotex case, this Recommendation is applicable to both the Videotex service and the attached Videotex terminals. Those terminals may be connected to the Videotex service via the hblic Switched Telephone Network (PSTN), Integrated Services Digital Network (ISDN) or Packet Switched Public Data Network (PSPDN). Typically, the terminals should support ISDN Syntax-Based Videotex (SBV). This Recommendation can also be used for any kind of retrieval service (not related to Videotex) by using the relevant underlying platform and content data types.