Developer Tool Guide

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Logical View of Data Overview

A logical view of data is a representation of data that resides in an enterprise. A logical view of data includes a logical data model, logical data objects, and logical data object mappings.

With a logical view of data, you can achieve the following goals:

Use common data models across an enterprise so that you do not have to redefine data to meet different business needs. It also means if there is a change in data attributes, you can apply this change one time and use one mapping to make this change to all databases that use this data.

Find relevant sources of data and present the data in a single view. Data resides in various places in an enterprise, such as relational databases and flat files. You can access all data sources and present the data in one view.

Expose logical data as relational tables to promote reuse.

The following figure shows a sample of related logical data objects: