In a data flow diagram, which element represents where data is stored?

In a data flow diagram, which element represents where data is stored?

• A. External entity
• B. Data Store
• C. Data Flow
• D. Process

Answer: (B)

In data flow diagrams, the symbol that represents stored data is the data store. It signifies a place where data resides for later use, such as databases, files, or repositories within the system. Other elements have different roles: an external entity is a source or destination outside the system boundary, a data flow shows the movement of data between elements, and a process represents a transformation or activity that changes inputs into outputs. Because storage specifically refers to data sitting still for retrieval, the data store is the correct representation.

In data flow diagrams, the symbol that represents stored data is the data store. It signifies a place where data resides for later use, such as databases, files, or repositories within the system. Other elements have different roles: an external entity is a source or destination outside the system boundary, a data flow shows the movement of data between elements, and a process represents a transformation or activity that changes inputs into outputs. Because storage specifically refers to data sitting still for retrieval, the data store is the correct representation.