* Question
| A simple DFD graphic description consists of the following four basic components, what are they? |
* Answer
| 1) Data flow, indicating the flow of data within the system, indicated by arrows.The arrow points to the direction of data flow, and the data name is written next to the arrow.
(2) Processing, also known as data processing or data transformation, represents the operation of the data. (3) Data storage, also known as file, means that the system needs to store the retained data. |
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