: A high-level overview showing the entire system as a single process interacting with external entities.
While "dfd.rar" is a compressed file package (RAR), it most commonly refers to a collection of —visual tools used to map how information moves through a system. These diagrams are essential for system analysis, software engineering, and business process modeling. Understanding the Data Flow Diagram (DFD) dfd.rar
To manage complexity, DFDs are organized into levels of increasing detail: : A high-level overview showing the entire system