"The car isn't running right," you say.
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"If I were you, I'd replace the induction system with an alloy casting, change the supercharger ratio and fit new plugs," he replies.
This guy is either a genius or bluffing, and my guess is bluffing. He simply doesn't have enough information to make those recommendations. You can probably see my problem.
Can two data warehouses work in one company? Of course, I've worked with several companies that use an architecture like that. Is it right for your company? I honestly have no idea -- I would need much, much more information.
The strengths and weaknesses of the two systems? Again, the truth is that it depends on what you want from the system. As a trivial example, SAP is a German-based company. I know of German companies who see this as a major advantage for a number of cultural and language reasons. Is that a good fit for your company? I have no idea.
I'm not trying to be awkward here but I feel that any definitive answer to the above question with be painfully glib at best and misleading at worst.
However, all is not gloom and despondent. I can possibly help with your question, how would I go about putting forward a case for one data warehouse over another?
The big question, the only really meaningful question, about a data warehouse concerns ROI. How much did it cost and how much money is it saving, or costing the company? Ask that question about the two data warehouses.
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