IAB201 Lecture Notes - Lecture 12: Block Diagram, Dynamic Structures, Petri Net
Document Summary
Modelling an information system involves combining irrelevant elements of the "real" system with fundamental elements of the real system to create the elements of the model. Combining one or more fundamental or "main" parts of the real system into one aspect of the model system is called composition. Some elements of the real system are simply eliminated, and the remaining elements are mapped identically to the model. Feedback: a portion of the output of a system returns as input (positively or negatively). Non-linearity: the output of a system is not directly proportional to its inputs, or outputs may change depending on context. In fact, organisations are cass and so are most technological systems used today. Fundamental modeling concepts (fmc) provide a framework to describe software-intensive systems, i. e. , information systems: enables people to share a common understanding of a system"s structure and its purpose, differentiates between compositional, dynamic, and value range (information) structure.
