Question

Which of the following is not true?

A) Data marts typically have fewer data sources than data warehouses.
B) Data marts typically have shorter implementation time than data warehouses.
C) Data marts typically have more subjects of analysis than data warehouses.
D) Data marts typically have more narrow focus than data warehouses.

Answer 1

The statement that is not true is 'C) Data marts typically have more subjects of analysis than data warehouses.' Data marts are more specialized and have a narrower focus compared to data warehouses, which have a broader view.

Step-by-step explanation:

The student asked which of the following statements is not true regarding data marts and data warehouses. Among the options provided:

• A) Data marts typically have fewer data sources than data warehouses.
• B) Data marts typically have shorter implementation time than data warehouses.
• C) Data marts typically have more subjects of analysis than data warehouses. This statement is not true.
• D) Data marts typically have a more narrow focus than data warehouses.

Data marts are generally smaller and focus on a specific business area or team, whereas data warehouses are larger and cover a broader range of subjects and data sources. Therefore, the incorrect statement is C) Data marts typically have more subjects of analysis than data warehouses.