Inventive Thinking Support Systems (ITSS) constitute a class of computer-based information systems that support Inventive Thinking activities. Definition Inventive Thinking Support Systems (ITSS) are a specific class of computerized information systems that supports business and organizational inventive thinking activities. A properly-designed ITSS is an interactive software-based system intended to help problem solvers compile a problem and the world of problem and to invent possible or even useful solutions. Typical information that a decision support application might gather and present would be: *description of a problem. *an inventory of all of information and materials in the world of problem. *possible solutions: ideas, implementation options, solution attributes, prioritization between solutions. History In the absence of an all-inclusive definition, first Inventive Thinking Support Systems appeared as systems that implement principles of TRIZ.