This Recommendation provides a Specification and Description Language (Z.100) instantiation of the data interface for Message Sequence Chart (Z.120) that is defined to be the default for Z.120.
ITU-T Z.121 SPANISH-2003 Referenced Document
ITU-T Z.100-2002 Specification and Description Language (SDL) SERIES Z: LANGUAGES AND GENERAL SOFTWARE ASPECTS FOR TELECOMMUNICATION SYSTEMS Formal description techniques (FDT) ?Specification and Description Language (SDL) Study Group 17
ITU-T Z.120-1999 Message Sequence Chart (MSC) - Series Z: Languages and General Software Aspects for Telecommunication Systems Formal Description Techniques (FDT) - Message Sequence Chart (Study Group 10)
ITU-T Z.121 SPANISH-2003 history
2003ITU-T Z.121 SPANISH-2003 Specification and Description Language (SDL) data binding to Message Sequence Charts (MSC)