Statecharts: A visual formalism for complex systems
Science of Computer Programming
Modeling High-Level Cognitive Processes
Modeling High-Level Cognitive Processes
Model-based evaluation of cell phone menu interaction
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Visual Modelling of Complex Business Processes with Trees, Overlays and Distortion-based Displays
VLHCC '07 Proceedings of the IEEE Symposium on Visual Languages and Human-Centric Computing
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We present a novel visualization for ACT-R/PM models of cognitive processes to support the model development. Because the underlying production system paradigm does not specify an explicit flow of control, it is rather difficult to grasp the structure of this kind of user models. Therefore, we developed an algorithm that analyzes the interdependencies of ACT-R/PM productions by resembling the main parts of the matching process of the production cycle. The algorithm produces a graph with nodes as specifications of the state of the declarative memory and edges as productions which are applicable in these states. States are generalized to reduce the complexity of the control flow. The graph is transformed into a state-chart like visual representation. Goal oriented behavior with sub-goaling is considered with subgraphs. The algorithm is implemented as a plug-in for the integrated development environment eclipse.