The Maintenance and Evolution Phase of the Database Life Cycle

question 2

Multiple Choice

The maintenance and evolution phase of the Database Life Cycle (DBLC) involves _____.

• A) defining objectives
• B) introducing changes
• C) testing the database
• D) installing the DBMS

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Definitions:

Amount of Profit

The financial gain made in a transaction or operation, calculated as total revenues minus total costs.

Vertical Axis

The y-axis in a graph or chart, which typically represents the dependent variable in a data set.

Total Cost Curve

A graph that depicts how the total costs of production vary with the level of output.

Economic Profit

A measure of performance that captures the surplus generated from business activities after accounting for both explicit and implicit costs.