Getting Started with Information Liquidity Modeling

An information liquidity model (ILM) provides a global view of the movement of information in your organization. You can analyze and document where your data originates, where it moves to, and how it is transformed on the way, including replications and ETL.

The movement of data is a central concern for the enterprise. Data movement modeling allows you to model where data originates to where it is loaded, and how it is transformed on the way.

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. You can generate and reverse engineer Replication Server® and MobiLink™ files. Data transformation – Data from diverse sources are combined to be extracted, transformed, and loaded to output sources via ETL (Extract Transform and Load) and EII (Enterprise Information Integration).
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).

• ILM Diagrams
  The PowerDesigner ILM provides the following diagrams:
• Creating an ILM
  You create a new information liquidity model by selecting File New Model .