Aggregation, summarization, and abstraction demystified

Aggregation, summarization, and abstraction demystified

As a data modeling expert in your company, you are frequently being asked modeling advice. After dazzling your coworkers with a clear explanation as when to use surrogate keys (see To surrogate key or not to surrogate key), you have received a big promotion and a corner office near the CIO’s office. The CIO is now asking you for frequent advice, including this request: “I have heard a lot of buzzwords at a recent business intelligence gathering. Give me a short yet complete explanation for aggregation, summarization, and abstraction.”

How would you respond? In the text box below, write your definitions for each of these terms.

Read the response to this challenge

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