TTCN-3 (Testing and Test Control Notation version 3) is a strongly typed test scripting language used in conformance testing of communicating systems and a specification of test infrastructure interfaces that glue abstract test scripts with concrete communication environments. TTCN-3 has been developed by ETSI and its predecessor is TTCN-2. Despite sharing some fundamental concepts, TTCN-2 and TTCN-3 are essentially two different languages, the latter having simpler syntax and standardized adapter interfaces. TTCN-3 scripts can be combined with ASN.1, IDL and XML type definitions. ASN.1 is natively supported by major TTCN-3 tool vendors.
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Applications
TTCN-3 has been used to deploy SIP, WiMAX, and DSRC test systems.
The Open Mobile Alliance adopted in 2008 a strategy of using TTCN-3 for translating some of the test cases in an enabler test specification into an executable representation.
The AUTOSAR project promoted (2008) the use of TTCN-3 within the automotive industry.
The 3GPP project promoted the use of TTCN-3 within the mobile industry.
Architecture
A typical TTCN-3 test system consists of: