In an Entity-Relationship Diagram,a Vertical Bar on a Line Indicates

question 4

True/False

In an entity-relationship diagram,a vertical bar on a line indicates that at least one entity of that type is required in the relationship.

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Definitions:

Computer-operated Pump Meter

A device controlled by a computer that measures the flow of liquids or gases through a pump, often used for accuracy in dispensing fuels or chemicals.

Cash Discount

A reduction in the price paid for goods or services that is offered to customers who pay in cash rather than using credit.

Net Profit

The amount of money remaining after all operating expenses, taxes, and interest are deducted from total revenue.

Cell Phone Usage

Refers to how individuals use their mobile phones, encompassing a range of activities including calling, texting, internet browsing, and app usage.