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TAO Testing

TAO is an open source digital assessment platform provided by Open Assessment Technologies (OAT).

Last updated September 16, 2026

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Overview

TAO is a digital assessment software platform provided by Open Assessment Technologies (OAT). According to OAT, TAO has evolved into a leading open source assessment solution for education and employment, with users in 194 countries, and has delivered over 100 million tests in more than 80 languages worldwide. The platform is offered in flexible packages, including a free open source Community Edition and the turn-key TAO Accelerate solution, and it leverages cloud providers including GCP and AWS for security and scalability.

History

The initial concept for TAO was developed in 2002 by LIST (The Luxembourg Institute for Science and Technology) and The University of Luxembourg, based on web technologies, later to be known as TAO (Test Assisté par Ordinateur). In 2004, LIST released the first prototype of TAO. In 2005, TAO entered a strategic partnership with DIPF. According to OAT, TAO has evolved into the leading open source assessment solution for education and employment, with users in 194 countries, and has delivered over 100 million tests in more than 80 languages worldwide.

Products and positioning

Open source digital assessment platform for education and employment, offering freedom, control, and support to evolve with today's learners.

  • TAO Community Edition (CE)

    Free extensible online assessment software built on open standards for enhanced ownership.

  • TAO Accelerate

    Turn-key digital assessment solution starting at €499 per month billed annually, designed to simplify the transition from paper to computer-based testing.

  • TAO Cloud™ Hosting

    Hosting service included in TAO Accelerate.

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