The Hercules CAD task management system

The authors introduce a novel information model for CAD task management, called the task schema, that unifies many of the requisite features for data, process, and methodology management into a single, concise representation. The task schema based approach has been implemented in the Hercules task management system. Unlike previous approaches to task management, in which tasks are defined on demand, or serve as the end representations in and of themselves, Hercules uses a graphical interface to derive tasks from the task schema. Both the task schema and the internal representation of tasks in Hercules have a formal basis in established methods from graph theory and database design.<>