Chapter 2 Information Liquidity Model Basics

Objects in an ILM

Objects belong to models and their symbols are displayed in diagrams.

You can create any object from the Browser, it is not dependent on the active diagram, but if you create objects using the tool palette, the objects available are specific to the active diagram.

The ILM includes the following objects:

Information Liquidity diagram

Object	Tool	Description
Database		Data store based on a relational model and stored in one or several Physical Data Models.
Server	—	Hosts the database that stores the tables gathering information.
XML Document		Data store that contains data written under the XML format. Provides access to the XSM model.
Data Access Application		Data processing application that provides access to the OOM model.
Data Access Link		Relationship that documents the way data are mapped between two data stores (database, data access application or XML document).
Replication process		Represents a server engine which role is to make a copy of data incoming from a given database into one or several databases or replication processes.
Replication Server		Represents a Replication Server. This tool only displays when the Replication Server XEM is attached to the ILM.
MobiLink		Represents a MobiLink Server. This tool only displays when the MobiLink XEM is attached to the ILM.
Publication	—	Defines published data or procedures for a database connection. It allows the identification of a set of data to replicate and from where it is extracted.
Article	—	Corresponds to a PDM table or view. It allows the identification of tables or views to replicate.
Where clause	—	Script that complements the code generation (SQL) to restrict the rows of a table you want to replicate
Column	—	Data structure that contains an individual data item within a row (record), model equivalent of a database field.
Procedure	—	Precompiled collection of SQL statements stored under a name in the database and processed as a unit.
Subscription	—	Establishes a link between a publication and a database connection. It defines where data published via the publication must be replicated.
User	—	Name that identifies a person or group working with objects in an ILM.
Connection group	—	Set of data connections that provides a relay in case the primary database goes down.
Event script	—	Defines how events on the replication process or on an article are implemented.
Process connection		Relationship that specifies the way data are moved between two replication processes.
Data connection		Relationship that specifies the way data are moved between a data store (database or XML document) and a replication process.

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