Tree and Tabular Combined Notation. ETSI and ITU standard notation used to define a communications protocol, mainly for test purposes. Has some parallels with CORBA IDL.
Tree and Tabular Combined Notation
TTCN is a programming language used for testing of communication protocols and web services. A TTCN test suite consists of many test cases written in the TTCN programming language. Until version 2 the language was written in tables and called Tree and Tabular Combined Notation. Reading and editing this language required special TTCN editors. Begin...Found on http://en.wikipedia.org/wiki/TTCN
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