UML-Style E-R Diagrams Allow for the Existence of Class Attributes

question 11

True/False

UML-style E-R diagrams allow for the existence of class attributes which are attributes that pertain to the collection of all entities within that class,not to the individual entity instances themselves.

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Definitions:

Excused Sellers

Sellers who are relieved from the obligation to deliver goods under a contract due to certain conditions that make performance impracticable.

Usage of Trade

A set of practices or behaviors that are widely accepted and used by a particular industry or commercial sector.

Express Terms

Specific conditions and provisions explicitly stated in a contract or agreement.

Trade Usage

Established practices or patterns of behavior regularly observed and accepted in a particular industry or trade.