UML-Style E-R Diagrams Allow for Three Different Levels of Visibility

question 13

True/False

UML-style E-R diagrams allow for three different levels of visibility of attributes.

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Definitions:

Molarity

A concentration measurement defined as the moles of a solute per liter of solution.

KBr

Potassium bromide, a chemical compound used in photography, as a sedative in veterinary medicine, and in analytical chemistry.

Molarity

A concentration unit used to describe the amount of solute in moles divided by the volume of the solution in liters.

NaBr

Sodium Bromide, a chemical compound with the formula NaBr, used in medicine, as a sedative or anticonvulsant, and in photographic processing.