When We Consider Data in the Data Warehouse to Be

question 3

Multiple Choice

When we consider data in the data warehouse to be time-variant,we mean:

• A) that the time of storage varies.
• B) data in the warehouse contain a time dimension so that they may be used to study trends and changes.
• C) that there is a time delay between when data are posted and when we report on the data.
• D) none of the above.

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Definitions:

Basic Communication

The fundamental process of exchanging information through speaking, writing, or other mediums, essential for human interaction and relationships.

First Step

The initial action or decision in a series that leads to a process or course of action; often critical to the direction and outcome of the process.

Lengel-Daft Contingency Model

A theory that suggests the effectiveness of information richness in communication varies with the nature of the task or situation.

Media Richness Hierarchy

A theory that ranks communication media according to their capacity to convey information effectively and accurately, with richer media being more capable of handling complex messages.