ITU-T TTCN-3 standard is part of the Z Series and is organized in several parts: TTCN-3 has been used to define conformance test suites to SIP, WiMAX, and DSRC standard protocols.
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.
[3] The AUTOSAR project promoted (2008) the use of TTCN-3 within the automotive industry.
[4] The 3GPP project promoted the use of TTCN-3 within the mobile industry.
[5] When executing the architecture is organized as follow: This is a TTCN-3 example with its graphical equivalent in MSC (Message Sequence Chart).