Det is a free universal tool to develop branching tree and rule based expert system that gets conclusions from questions. Provides exact conclusion even if several answers were not correct. At the current state, building new expert system with Det requires writing a data definition text. However the structure of this text is very simple, far simplier than any programming language. No special programming is required, already created old manuals for plant, insect, disease, electronic bug, etc recognising can be entered directly after minor adaptation.

Det was tested under the following artificially created situations: | Det supports
The user correctly answers all questions. The user makes one random mistake. The user refuses to answer a certain category of questions (this is common - for example, we must determine a plant and have no its flowers). The user answers a certain category of questions incorrectly. In all these cases the true conclusion was always reached thanks to switching into the alternative key. | Description tables (data matrices) Multiple dichotomic decision trees (dichotomic keys) Rules Final descriptions Context-sensitive Internet connection Real world-images (jpg) Logic setup window.

Det conception | End-user interface | Contact us | FAQ | Visitor statistic | Installation | Det description language | Example