Understanding Data-Flow Diagrams (DFDs)
Introduction Data-Flow Diagrams (DFDs) are powerful tools for modeling the flow of information within a system. They provide a visual representation that is accessible to both computer specialists and non-specialist users, making them invaluable during the analysis and specification of system requirements. 1. Basic Concept At its core, a DFD models how information moves through a system and the activities that process this information. It is a graphical representation that fosters effective communication between software engineers, customers, and users. 2. Components of a DFD 2.1 Processes Processes in a DFD represent activities or…continue reading →
