TTCN-3

TTCN-3 (Testing and Test Control Notation version 3) is a strongly typed testing language used in conformance testing of communicating systems. TTCN-3 is written by ETSI in the ES 201 873 series, and standardized by ITU-T in the Z.160 Series. TTCN-3 has its own data types and can be combined with ASN.1, IDL and XML type definitions.

==Standard organization== ITU-T TTCN-3 standard is part of the Z Series and is organized in several parts: Z.161 - Core Language defining the core textual notation Z.162 - Tabular presentation format (TFT) - a way to present the tests in a tabular presentation Z.163 - Graphical presentation format (GFT) - a way to present the tests graphically with a representation that is similar to the MSC Z.164 - Operational Semantics - Defines how TTCN-3 is executed Z.165 - TRI - Defines the API provided and required with a tester Z.166 - TCI - Defines the API provided and required with a test controller Z.167 - ASN.1 - Defines how to use ASN.1 data types in a TTCN-3 test suite Z.168 - IDL to TTCN-3 mapping Z.169 - Using XML schema with TTCN-3