ITPEC FE Subject A October 2024 Question 56

The question asks what technique discovers useful information from large amounts of customer/market data.

• •Data mining is the process of analyzing large datasets to find patterns, correlations, and useful relationships — exactly what is described.

Why not others:
- (a) Data dictionary — a reference document describing the structure of a database (tables, fields, types); it's metadata documentation, not analysis
- (b) Data flow diagram — a UML/modeling tool showing how data moves through a system; a design artifact, not an analytical technique
- (d) Data warehouse — the infrastructure that stores large amounts of data; data mining often uses a warehouse, but warehousing itself is storage, not discovery

Key rule: Data mining = extract insights from big data; Data warehouse = store big data. They work together, but are different things.

AI-generated — may contain errors