DFD: Data Flow Diagram video

What is the primary purpose of a Data Flow Diagram (DFD)?

• To illustrate how data is processed by a system in terms of inputs and outputs.

• To visualize the physical layout of a computer network.

• To describe the organizational hierarchy of a company.

• To document the user interface design of an application.

In which decade did Data Flow Diagrams (DFDs) gain popularity in software development?

• 1960s

• 1970s

• 1980s

• 1990s

Which of the following are two common types of notations used for Data Flow Diagrams?

• UML and BPMN

• Yourdon & Coad and Gane & Sarson

• Flowchart and ERD

• Activity Diagram and State Machine Diagram

In a Data Flow Diagram, what does a "process" represent?

• A repository of data in the system.

• An object outside the system that communicates with it.

• A transformation of incoming data flow into outgoing data flow.

• A pipeline through which packets of information flow.