Context Diagram Logical. Current logical diagrams start with context level decompose as needed for understanding proposed logical diagrams start at level where change takes place decompose as far as possible current physical diagrams at level of change proposed physical diagrams same levels as proposed logical lower levels. The context diagram graphically identifies the system.
Data flow diagrams dfds are categorized as either logical or physical. The diagram shows how the logical entities are to be physically realized by application components. A logical dfd focuses on the business and how the business operates.
This data flow diagram logical template can help you map out the flow of information for any processsystem.
When students want to register for a class students must submit a registration form with full information about their full name. 28k views view upvotes gary a. It is not concerned with how the system will be constructed. Its a basic overview of the whole system or process being analyzed or modeled.