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:

Normative Economics

A branch of economics that expresses value judgments about economic fairness or what the economy ought to be like.

Microeconomics

Microeconomics analyzes individual decision makers and markets, focusing on supply and demand, price, and output decisions in individual markets.

Production Possibilities Frontier

A depiction that captures every maximum production possibility for two specific commodities, predicated on a range of inputs that includes resources and additional variables.

Opportunity Costs

The expense incurred from not selecting the next most favorable choice when a decision is taken or preferring one alternative over another.