Processing

After this initial phase is complete, the actual ISAAC system begins to read the annotated text. The six supertasks are properly thought of as parallel executing coroutines, although the current implementation is a serial version of this paradigm. Two types of   communication exist between the implemented supertasks. The supertasks communicate among themselves via a message passing system; this is the implementation of expectation-driven processing. Also, certain structures are globally available in a blackboard-like architecture, thereby allowing various supertasks to implicitly share information.