The main features of ConcurTaskTrees are: In human–computer interaction, task models indicate the logical activities that an application should support to reach users’ goals.
There are also methods that indicate how to derive user interfaces for different platforms from ConcurTaskTrees specifications [2] The last evolution has been the introduction of preconditions.
It has been considered in the World Wide Web Consortium (W3C) for standardization of task models [2].
Some studies have investigated its usability [4] ConcurTaskTrees has been mapped into Unified Modeling Language (UML).
[5] The editing and analysis of task models is supported by the ConcurTaskTrees Environment (CTTE).