What Is a Primary Key

question 228

Multiple Choice

What is a primary key?

• A)A field (or group of fields) that uniquely identifies a given entity in a table.
• B)A primary key of one table that appears as an attribute in another table and acts to provide a logical relationship among the two tables.
• C)Characteristics or properties of an entity.
• D)A field (or group of fields) that uniquely identifies a given attribute in a table.

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Definitions:

Product Design

The process of creating a new product to be sold by a business to its customers, focusing on specifications, features, and aesthetics.

Holistic

An approach that emphasizes the importance of the whole and the interdependence of its parts, often used in management and problem-solving to consider all factors.

Aesthetic

Pertains to the nature of beauty, art, and taste and the creation and appreciation of beauty.

Kano Model

A theory for product development and customer satisfaction developed by Noriaki Kano, which classifies customer preferences into five categories: Must-Be, One-Dimensional, Attractive, Indifferent, and Reverse.