TTCN-3

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 same 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 type definitions. ASN.1 is natively supported by major TTCN-3 tool vendors.

Applications

TTCN-3 has been used to deploy SIP, WiMAX, and DSRC test systems.

The Open Mobile Alliance has recently adopted a strategy of using TTCN-3 for translating some of the test cases in an enabler test specification into an executable representation. [ [http://www.openmobilealliance.org/documents/OMA-BOD-IOP-2008-0007R04-INP_TTCN_3_Test_Code_Developments_RFI.pdf TTCN-3 Test Code Developments - Request for Information] , May 1, 2008, Open Mobile Alliance, retrieved on May 7, 2008]

The AUTOSAR project is promoting the use of TTCN-3 within the automotive industry. [ [http://www.ttcn-3.org/ApplicationAreas.htm TTCN-3 application areas] , ETSI official TTCN-3 web site, retrieved on May 7, 2008]

Architecture

A typical TTCN-3 test system consists of:
* execution core that runs test cases (TE or test execution)
* SUT adapter implementing TRI SA interface that is responsible for network interface code
* platform adapter implementing TRI PA interface that is responsible for timers and external functions
* coding and decoding (TCI-CD interface)
* test control interface that uses TCI-TM API

External links

* [http://www.ttcn-3.org ETSI TTCN-3 web site]
* [http://www.ttcn-3.org/StandardSuite.htm Official TTCN-3 standard]
* [http://wiki.openttcn.com/media/index.php/OpenTTCN/Language_reference TTCN-3 language reference]

References