There are some that argue the best approach is to start with data marts, department by department, then merge them together to form a data warehouse- this is more in line with Kimballs approach. Now, Bill Inmon is an advocate of the Data warehouse. Here's one of his articles, which contains the following quote that makes it clear what he thinks about the idea: You can catch all the minnows in the ocean and stack them together and they still do not make a whale, Bill Inmon, January 8, 1998.
At night, the nocturnal slow loris will slowly climb around in the trees searching for food. Because of a slow lorises location (habitat), it has access to many fruits, plant matter, and insects including ants and termites. Slow lorises also eat plants that produce nectar, the gum (high glucose sap from trees) and even bird eggs. Their diet makes them primary and secondary consumers.
In general, a fish requires three factors to survive, food, shelter and an environment that will sustain their physiology: 1  Food must be in quantity, and proximity, that ensures that less energy is used finding food, than the energy the food provides.