Using the Logical Model

In this section:

The Logical Model is used to set up almost all real-world objects in the MDM Hub, which are generated from the metadata description of all entities, relationships, and settings. It consists of several models describing particular data layers (the number of layers depends on user settings).

Based on the Logical Model, transformation iWay Data Quality Server (DQS) plans are derived for each particular entity:

These plans serve for transition between the logical layers.


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Viewing the Instance Layer

The Instance Layer defines instances and dictionary entities, their relationships, and entity attributes defining the following logical data layers:

The following list describes the tabs found in an Instance entity.

The following list describes the tabs found in a Dictionary entity.

The following list describes the tabs found in a Relationship.


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Viewing the Master Data Layers

The Master Data Layers define one or more Master Data Layers.

Each Master Layer defines master andv (virtual) instance entities, their relationships, and entity attributes defining the L4 logical layer to store merged output (for example, golden or master records).

The following list describes the tabs of the Master Entity.

The following list describes the tabs of the Instance entity.

The relationship is the definition between two masters, master and instance, or instance entities.

Note: The relationship is oriented from a child to a parent entity (N:1), for example, it points from a child to a parent entity.


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Viewing Reference Data

Reference data supports and automates reference data mastering. There are two types of reference data (also called dictionary):

Each definition automatically creates the following artifacts with a predefined structure (typical settings):

To deliver full functionality, reference data definitions have to be used on an Instance or Master entity.

Note: Sources have to be created in an external tool.

The following list describes the tabs of a Dictionary.


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