Generating multimedia presentations automatically using TYRO, the constraint, case-based designer´s apprentice

TYRO is a visual programming environment that uses a case-based reasoning approach to capturing and reusing knowledge about the design of multimedia presentations. In TYRO, the designer constructs a case library by demonstrating solutions to prototypical multimedia problems and defining constraining relations between object sequences. Adaptation and augmentation of the case library takes place as trial presentations reveal failure conditions. The designer constructs rule objects which are combinations of condition objects and action objects. Condition objects trigger when the failure condition is detected and action objects fire and revise the constraint network, or revise the sequence of objects. The resulting cases generated are stored and indexed for future use by the system