T2: Logical Data Modeling

Suggested Prerequisite is a solid understanding of Conceptual (ER) modeling. Data Modeling is a fundamental skill for any data professional. Data Modeling is normally divided into three distinctly different and sequential phases: Conceptual, Logical, and Physical. This tutorial presents a very complete overview of Logical (data element level of detail) Data Modeling (LDM). The tutorial defines all terms used in LDM, describes a very pragmatic, efficient process for creating a LDM by working with business users, and takes the student through each of those steps with many examples and illustrations of the deliverable of each step. The presentation emphasizes a RULE-BASED modeling method to be used by the modeler, which ensures that the resulting model would be identical (given the same information requirements) regardless of who the modeler(s) are. It is recommended that any attendee of this tutorial first attend the Conceptual Data Modeling tutorial.