Which of the Following Notations in an E-R Diagram Means

question 72

Multiple Choice

Which of the following notations in an E-R diagram means that the entity is optional and a relationship need not have an entity of that type?

• A) vertical bar
• B) arrow
• C) double line
• D) small oval
• E) triangle

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Definitions:

Economic Growth

An increase in the production of goods and services over a specific period, often measured by GDP.

Production

The process of creating goods and services through the combination of labor, materials, and capital.

Production Possibilities Frontier

A curve depicting all maximum output possibilities for two goods, given a fixed amount of resources and technology.

Deep Depression

An extended period of significant decline in the economy, characterized by high unemployment, sharp decreases in output and trade, and widespread poverty.