is a neural network modelling tool. A neural network is a tool for automating problem solving and decision making tasks. They can be used by investors and traders, as well as professionals in science, engineering, marketing, manufacturing, medical diagnostics, artificial intelligence, etc. Qnet is a full-featured, backpropagation neural network modeling system. Qnet's modeling system includes: neural network design tools, model training and optimization, and the integration of finished neural networks into everyday Windows applications (spreadsheets, database applications, programming environments, etc.). The program comes with example neural network models in the areas of science, investing and pattern recognition.