Abstract: A computer system including a server computer with a graphical user interface associated with users and a dynamic content database, and a method of assisting users with a multiple stage decision making process. The graphical user interface visualizes objects, mathematical operation and logical operations required for executing a generic decision making process. The method: enables the users to visually express, in a stage by stage form, a particular decision making process; iteratively and responsively provides the users with instructive queries that are arranged to instruct the users how to further define the next stage of the particular process, until the particular decision making process is defined; applies the defined decision making process on the dynamic content database; provides the users with the results of the decision making process; and debugs the decision making process as constructed by the user.