Question

4.10 Suppose a company wants to design a data ware house to facilitate theanalysis of moving vehicles in an online analytical processing manner. Thecompany registers huge amounts of auto movement data in the format of (AutoID, location, speed, time). Each Auto ID represents a vehicle associated withinformation (e.g., vehicle category, driver category), and each location may beassociated with a street in a city. Assume that a street map is available for thecity.​

Answer 1

Answer:

In optics, dispersion is the phenomenon in which the phase velocity of a wave depends on its frequency. Media having this common property may be termed dispersive media. Sometimes the term chromatic dispersion is used for specificity. Wikipedia

Answer 2

Answer:

It is important to consider the vehicles as the reality table to design the warehouse for the testing process of moving vehicles.

We need to ensure that the setup focuses to the four dimensions that include speed, time, auto and area.  

These kinds of measures can vary based on the required target as well as required powered.  

Therefore, the measures considered are vehicle mileage and vehicles sold.

Explanation: