Name the Four Basic Symbols Used in Data Flow Diagrams,and

question 108

Essay

Name the four basic symbols used in data flow diagrams,and briefly define them.

---

Definitions:

Data

Information, especially numerical or categorical, collected through observation or research for analysis or decision-making.

Relationship

The manner in which two or more ideas, items, or individuals are linked, or the condition of being linked.

Variable

An attribute, characteristic, or measurement that can take on different values across individuals, objects, or time points in data collection and analysis.

Increases

A term indicating a rise or growth in a numerical value or quantity.