Data Transformation Engine Integration Flow Designer Reference Guide

Chapter 9 - Links External Links
Integration Flow Designer Reference Guide
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The IFD also displays the audit log of a map as a target if you enable the map’s
audit log option (MapAudit > Switch = ON). The audit log file is represented as
a target by using a dotted internal link.
In general, the IFD automatically derives and displays internal links for an
expanded map component. It uses information in the referenced source or
compiled map file together with any source and target overrides that may be
specified.
If you change the default sources or targets defined within a source or compiled
map file using the Map Designer, then the IFD will display these modified
definitions when you expand the corresponding map component. Also, if you
change the source or target (input or output) overrides for a map component by
using the IFD, then the changed overrides are displayed when you expand the
corresponding map component.
The IFD prevents you from deleting internal links as well as the corresponding
source and target icons. You must use the Map Designer to change the number
and type of inputs and outputs.
External Links
Map components and subsystem components are the fundamental building blocks
of a system. The IFD uses links to display data flow relationships among these
components. A link that is displayed between two system components is called an
external link because the link is not an integral part of either component. An
external link represents the fact that one of the components produces a data
target and the other component uses this data as a source.