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Dimensional Modelling by Example - Database Answers

Dimensional Modelling by Example Page 1 04/09/2014 13:02 Dimensional Modelling by Example Barry Williams Dimensional Modelling by Example Page 2 04/09/2014 13:02 1. Management Summary .. 5 The Purpose of this Book .. 5 The Contents of this Book .. 5 Three Stages .. 5 What are Dimensional Models ? .. 5 Data Marts .. 6 Best Practice .. 7 Types of Dimensional Models .. 7 How to use the Dimensional Models .. 12 2. Getting Started .. 12 Design Guidelines - a Four-Step Approach .. 12 Always use Surrogate Keys .. 12 Agree an Architecture .. 13 Conceptual Data Models .. 18 Using Dimensional Models for Reports .. 21 Dates and Flattened Hierarchies .. 22 3. Reaching Maturity .. 23 Semantic Layer .. 23 Self-Service BI .. 25 Churn - Analysing Churn Rate.

This analysis shows that the three dominant Subject Areas are :- 1. Customers 2. Products 3. Revenue from Sales of Products to Customers. Revenue The Dimensional Models reflect these three Subject Areas. Customers Products . Dimensional Modelling by Example Page 15 04/09/2014 13:02 2.3.3 Conformed Dimensions ...

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