- How does your user perceive the nature of the business?
- How do users of the source systems perceive their own activities?
- How do source systems record the activities of their users?
Sometimes even harder than the philosophical challenge of reconciling those divergent perspectives is the act of reconciling them into a common model of understanding in the form of a reporting system or data warehouse. Woe to any architect or modeler who takes one of the stories as gospel and disregards the others.
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