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Crystal Reports XI: Official Guide by Michael Voloshko, Annette Jonker, James Edkins, Neil FitzGerald

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Chapter 18 Using a Semantic Layer—Business Views and Universes

In this chapter

Introduction to Semantic Layers 398

Why Use a Semantic Layer 398

Introduction to Business Views 399

Introduction to Universes 408

Universes and Deployment 415

Differences in How CR/WebI Use Universes 420

Differences with Business Views and Universes 421

Troubleshooting 421

Introduction to Semantic Layers

The semantic layer is a metadata layer that abstracts the complexities of the data source. The end user sees only a logical grouping of available, well-named fields for use and does not have to concern herself with the intricacies of database design or need any SQL knowledge.

In Business Objects XI, two semantic layers are supported—business views and universes. With ...

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