Which Data Flow Diagram (DFD) Symbol Is Usually Portrayed with an Arrow

question 37

Multiple Choice

Which data flow diagram (DFD) symbol is usually portrayed with an arrow?

• A) data flow
• B) data store
• C) external entity
• D) process or internal entity

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Definitions:

Goods X

An unspecified product or commodity that is the subject of economic analysis or transaction.

Goods Y

A reference to a particular class or type of goods, often used in economic models.

Diminishing Marginal Rate

The Decline in the additional output produced when a new unit of input is added, with all other inputs held constant.

Substitution

The economic concept where consumers replace more expensive items with less costly alternatives, or firms replace inputs with more economical options.