First published in October 2000 the flexibility and adaptability of this internationally standardized language has led to its rapid deployment in the telecommunications domain and beyond, including automotive, transportation, Internet, medical, web-based services, finance, industrial automation and distributed systems. In addition, its use has expanded from functional conformance testing to include load, performance and interoperability testing.

Whilst traditional use of TTCN-3 has largely centred on Europe, other parts of the world (notably China and India) have adopted it and are developing considerable expertise in its use.

The annual ETSI TTCN-3 User Conference demonstrates the global interest in the language. Please come to T3UC 2011 in Bled, Slovenia!

The ETSI TTCN-3 standard is owned and continuously maintained and developed by ETSI Technical Committee Methods for Testing and Specification (TC MTS).

TTCN-3 celebrates
 its 10^th anniversary this month!

Some achieved milestones

• Start of TTCN-3 language development by the ETSI Specialist Task Force 333

• Official launch of the TTCN-3 language
• First commercial TTCN-3 tool available

• TTCN-3 becomes an international standard through its endorsement as an ITU-T recommendation

• ETSI publishes first standardized conformance test suite (SIP compliance testing)

• First TTCN-3 User Conference is hosted by ETSI in Sophia Antipolis

• ETSI publishes the first framework for TTCN-3 test development (IPv6)

• 3GPP adopts TTCN-3 for the specification of standardized its terminal conformance test development
• First TTCN-3 User Conference in China
• Ericsson reports 1,837 active licenses in use
• The Open Mobile Alliance (OMA) establishes a permanent group for dealing with TTCN-3 issues
• First TTCN-3 open source tools become available

• The WiMax Forum begins certification of products with validated TTCN-3 test cases
• The Automotive Open System Architecture (AUTOSAR) adopts TTCN-3 for their conformance test specification

• ETSI hosts the first Plugtest for TTCN-3 tools
• First use of TTCN-3 test suites for checking conformance during interoperability testing (ETSI IMS Plugtest)
• 135 participants attend the 1st TTCN-3 User Conference in India