FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -The context diagram is the highest level in a data flow diagram and contains only one process, representing the entire system. The process is given the number zero. All external entities are shown on the context diagram, as well as major data flow to and from them.

Detailed explanation-2: -DFD Level 0 is also called a Context Diagram. It’s a basic overview of the whole system or process being analyzed or modeled. It’s designed to be an at-a-glance view, showing the system as a single high-level process, with its relationship to external entities.

Detailed explanation-3: -A context diagram is a top level (also known as “Level 0") data flow diagram. It only contains one process node ("Process 0") that generalizes the function of the entire system in relationship to external entities.

Detailed explanation-4: -What is the difference between a context diagram and diagram 0? Which symbol is not used in a context diagram? The context diagram provides different views of information system. Diagram 0 is used to provide insight view of an info system represents internal process, entities, data flow, and data storage.

Detailed explanation-5: -Level 0 DFDs, also known as context diagrams, are the most basic data flow diagrams. They provide a broad view that is easily digestible but offers little detail. Level 0 data flow diagrams show a single process node and its connections to external entities.