Every data warehouse has an architecture, but many warehouses are developed without an explicit architectural plan which severely limits flexibility, Warren Thornthwaite, co-founder of InfoDynamics LLC, told attendees Aug. 28 at the DCI Customer Relationship Management Conference & Exposition in New York. "The subject areas don’t fit together, connections lead to nowhere and the whole system is difficult to manage and change," he says. To do the job right, Thornthwaite notes that information technology managers should compile architecture-related requirements and draft an architecture and development model. Next comes drilling down and designing the sub-systems, determining the implementation phases, developing a plan document and reviewing/finalizing the plan. "Align the architecture with business requirements and keep it practical," he says.

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