Blogs

  • Dimensional logical?

    You are sitting in a smoky bar and you hear some loud voices becoming louder at the other end...

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    Steve Hoberman
  • Aggregation, summarization, and abstraction demystified

    As a data modeling expert in your company, you are frequently being asked modeling advice. After dazzling your coworkers...

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    Steve Hoberman
  • Decoding codes

    You are responsible for modeling best practices in your company, and have noticed three different ways for modeling codes....

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    Steve Hoberman
  • Role of the data architect

    At the beginning of a data modeling course, I find it very useful to learn more about the participants....

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    Steve Hoberman
  • Getting physical with subtypes

    Subtyping is a powerful communication tool on the logical data model, because it allows the modeler to represent the...

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    Steve Hoberman
  • Creative hierarchy

    An organization has a sales department with four levels, as shown in the following logical data model: Zones are...

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    Steve Hoberman
  • Definition Differences

    Your coworker calls you in the middle of the night with a data modeling emergency. There needs to be...

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    Steve Hoberman
  • Super Star

    A star schema is designed to efficiently answer metric business questions, such as those questions that return amounts, quantities,...

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    Steve Hoberman
  • Rules on rules

    A logical data model represents a business solution independent of technology, including the business rules. For example, the rule,...

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    Steve Hoberman
  • Data Dictionary, are you out there?

    A global manufacturing company needs a data dictionary to assist them with maintaining and publishing definitions of business concepts...

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    Steve Hoberman