A constant can be used to make a default value or a setting more obvious in the matching algorithm. This can be done by declaring the constant in the data elements and then adding it as an input parameter to another data element, a matcher, or a match code generator. Constants can also improve the reuse of business functions across matching algorithms.
For example, a business function adds a specific normalization to values only from a configured source system. The constant can list those source systems, separated by semicolon or similar. This makes the normalization business function reusable across more matching algorithms and makes the source system list easier to maintain.
Input
None
Output
The output of the attribute data element is a string.
Functionality
Makes the entered constant string available to other data elements, matchers and match code generators.
Configuring a Constant Data Element
After adding the constant in the data elements flipper of the Decision Table dialog (defined in the Match Criteria topic here), configure it as follows:
Click into the Data Elements column and add the desired text.
