Chapter 2 Getting Started with Information Liquidity Modeling

ILM diagrams

The PowerDesigner ILM provides the following diagrams:

Diagram	Icon	Description
Information liquidity diagram		Shows data movement through: Data replication – One or more source databases are replicated into one or more remote databases via replication engines. Data transformation – A high-level view of the input and output sources involved in a transformation process.
Data transformation diagram		Low level diagram that analyzes a data transformation to show how data is extracted from inputs, transformed by actions and loaded into outputs (see Data transformation diagram).
Transformation control flow diagram		Low level diagram that analyzes the sequence of execution of a series of data transformations (see Transformation control flow diagram).

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