A Data _____ Is a Small, Single-Subject Data Warehouse Subset

question 1

Short Answer

A data _____ is a small, single-subject data warehouse subset that provides decision support to a small group of people.

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Definitions:

Concrete Class

A class in object-oriented programming that can be instantiated, as opposed to an abstract class, and provides implementations for all its methods.

Abstract Methods

Abstract methods are methods in Java that are declared without an implementation in an abstract class, and must be implemented by subclasses.

Downcasting

The process of converting a reference of a parent class to a reference of a child class in the object hierarchy.

Ancestor Class

A class from which another class is derived, either directly or through one or more levels of inheritance.