How Is a Data Warehouse Different from a Data Mart

question 66

Essay

How is a data warehouse different from a data mart?

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Definitions:

Output

The quantity of goods or services produced by a business, industry, or country.

Normal Profit

The payment made by a firm to obtain and retain entrepreneurial ability; the minimum income that entrepreneurial ability must receive to induce entrepreneurs to provide their entrepreneurial ability to a firm; the level of accounting profit at which a firm generates an economic profit of zero after paying for entrepreneurial ability.

Implicit Cost

The monetary income a firm sacrifices when it uses a resource it owns rather than supplying the resource in the market; equal to what the resource could have earned in the best-paying alternative employment; includes a normal profit.

Law of Diminishing Returns

The economic principle stating that as one input variable is increased, there is a point at which the marginal gain in output begins to decrease, holding all other inputs constant.