What Is a Data Flow Diagram (DFD)

question 230

Multiple Choice

What is a data flow diagram (DFD) ?

• A) Illustrates the movement of information between external entities and the processes and data stores within the system.
• B) Software suites that automate systems analysis, design, and development.
• C) A formal, approved document that manages and controls the entire project.
• D) Involves graphically representing the processes that capture, manipulate, store, and distribute information between a system and its environment.

---

Definitions:

Mg

The chemical symbol for magnesium, a shiny gray solid that has the atomic number 12 and is an essential element for living cells.

Arsenic

A toxic metalloid with the symbol As, known for its various allotropes and compounds, many of which are potent poisons.

Poison

Any substance that, when introduced into or absorbed by a living organism, causes death or harm by its chemical action.

Ground Water

Water that is held underground in the soil or in pores and crevices in rock.