Advantages of data marts over data warehouses are all of the following except:
A)data marts require shorter lead times for implementation,often less than 90 days.
B)data marts allow for local rather than central control,giving end-users more power or control.
C)data marts have higher quality and more complete enterprise data.
D)data marts are easier to understand and navigate because they contain less data.

Question

Quizplus · Accepted Answer

This statement is actually false. Data marts have a smaller scope than data warehouses and therefore contain a subset of the total enterprise data. This can lead to inconsistencies and lower data quality compared to a data warehouse that has integrated and standardized data from multiple sources. Therefore, data marts do not have higher quality and more complete enterprise data compared to data warehouses.

Advantages of Data Marts Over Data Warehouses Are All of the Following