ConcurTaskTrees (original) (raw)

ConcurTaskTrees (CTT) is a notation for task model specifications useful to support design of interactive applications specifically tailored for user interface model-based design. The main features of ConcurTaskTrees are: * Hierarchical structure, which provides a large range of granularity in describing large and small task structures; * Graphical syntax, which reflects the logical structure in a tree-like form; * Concurrent notation, which supports flexible ordering of the tasks to perform. Some studies have investigated its usability