Interactive Process Models Sample Clauses

Interactive Process Models. A process is a structured object which evolves over time and which can be reasoned about. Reasoning about processes enables parallel execution, suspension and resumption of computational tasks, and dynamic ordering. Different processes are represented differently. For example, modeling a student's errors, generating strategic hints, detecting that a solution is incomplete, and generating hypotheses about missing domain facts are all processes that are conceptually independent. The rule base in an instructional program contains models of three different kinds of processes: • the domain model (the subject material being taught), • the inference procedure (how a model is used to solve problems), and • the interaction model (how to communicate and interact with a student). The objects, rules, and relationships of the subject matter form the domain model. The inference procedure is the set of algebraic and logical rules which control changes and interaction with the task model. The interaction model defines the rules of the interface and of the pedagogical model used to guide teaching. Inference and communication are models since they model how people solve problems and teach. The task model is the domain model plus the inference procedure, the facts and the way we use them. When the instructional courseware runs, these models are effective procedures; they enable EduSpace to solve problems and to communicate. Models are implemented and maintained as entities within the EduSpace system. Domain, inference, planning, and communication form successively more general contexts for the processing and display of the situation specific model which defines the student's interaction with the lesson information. What makes software reusable by different interpreting inference procedures is the ability to classify process constructs in different ways. Different interpretation procedures require different views of the model/process being reasoned about. These views take the form of new relations by which elements of the model/process are classified. In essence, relations act as filters by which different elements of the process model are preferentially collected and sorted for incorporation in a situation specific model. Although we can model human reasoning using expert systems, there is always an aspect of creativity and improvisation to human performance that a body of facts and laws does not capture. Human experience is integrated with computation in EduSpace by making ...