Question

Data flow diagrams (DFDs) depict a system's components; the data flows among the components; and the sources, destinations, and storage of data. What do data flow diagrams (DFDs) depict?

1) The components of a system
2) The data flows among the components
3) The sources, destinations, and storage of data
4) All of the above

Answer 1

Data flow diagrams (DFDs) depict the components of a system, the data flows among the components, and the sources, destinations, and storage of data.

Step-by-step explanation:

Data flow diagrams (DFDs) depict the components of a system, the data flows among the components, and the sources, destinations, and storage of data.

For example, let's consider an online shopping system. A DFD for this system would show the different components, such as the customer, the website, the database, and the payment gateway. It would also show how data flows between these components, like when the customer selects items and adds them to the shopping cart.

Overall, a DFD provides a visual representation of the system's structure and the movement of data within it.