$5\mathrm{.}4$ Data Warehouses and Data Marts

A l$$rge bank needs to get a $360-$view of how its customers engage in banking transactions while inside the bank, at the ATM, online, and on their mobile phones. Explain why a hub and spoke architecture would work the most efficiently.

Smaller data marts not connected to a warehouse reflect the entire enterprise.

Multiple data marts with independent views would decrease inconsistent data.

The data marts will have faster response times for more data dimensions.

The data marts will not be tied to a slower 'central location for data storage.