I am busy building a data warehouse for an e-business “virtual” retail bank (virtual = no branch infrastructure; e-business = clients only have access to the bank via the Internet). All the reference material on this site refers to either e- business or e-business organizations. Can I apply deductive thinking in assuming that everything will therefore be applicable to an e-business retail bank or are there additional aspects/issues/concerns that must be addressed?


Scott Howard’s Answer: The world modeled in your data warehouse must accurately represent the unique business world of your own enterprise. If you can predict the future and model for that – well that would be admirable but also could be prone with errors and missed predictions. My recommendation is to keep your implementation as simple as possible and only model what you know of today from a single consolidated view of the business that you have today. I make this same recommendation for building multitier data warehouses, that is only put in the enterprise data warehouse what is needed to source the current data marts. This provides quicker ROI and allows you to incrementally grow your DW as your business needs dictate. Projects that attempt to reign in all of an enterprise's data never end. Don't fall into that trap. Keep your aspects, issues and concerns to that of your current business, the virtual bank.

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