Reviewing and Modifying an IAM Model

You generate an impact analysis model (IAM) by clicking the Generate Model button on the Impact and Lineage Analysis dialog box. An IAM provides a graphical view of your analysis and allows you to save the analysis as a snapshot for later reference.



In the above example, the Employee table shows influencing (lineage) objects on the left and dependent (impacted) objects on the right. Links between the objects represent the analysis rules that propagate actions on objects.

The following types of objects are available in an IAM:

Symbol

Description



Initial objects - The model objects being analyzed have symbols surrounded by dotted lines. In the Browser, click to expand the initial object to view the tree of its incoming references (impacted objects) and outgoing references (lineage objects). You can also see the list of initial objects by selecting Model > Analysis Objects.



Impacted and lineage objects - The model objects that are impacted by or influencing the initial objects. In the Browser, these collections of objects are inside folders bearing a downward arrow () for impacted objects or an upward arrow () for lineage objects.



Link - Analysis rule between initial objects and impacted objects.

[none]

Impacted Models - The models that are impacted by the change. You can see the list of impacted models in the Browser or by selecting Model > Analysis Models.

Note:

You can add graphical objects, such as notes or decorative symbols, to your diagram.

You can modify your analysis in the following ways: