Designing processes - EMC Community Network

Designing the Process
In general, you can use this approach whenever you are working with repeating elements and you
wish to take action for each one of the elements.
Adding multi-valued attributes
When you are mapping repeating nodes, you want to retrieve all the values of the repeating node from
the left-hand side and then insert these values in the proper position on the right-hand side. To achieve
this, multi-valued attributes have an Add link next to their names. Use the Add link to create a node
that represents a specific index of multi-valued attributes.
To add a node with a new index value:
1. Click Add next to the attribute for which you want the system to create a node with a default
index value.
2. Double-click the new index value to launch the Repeating Index dialog box.
3. To change the index value, select FIRST, LAST, or type a numeric value for the index position.
FIRST creates the first index position for the attribute. This is generally more useful on the
Input Message Mapping side when mapping the first value of an attribute to another attribute on
the Output Message Mapping side.
LAST creates the attribute at the end of any other existing attributes. The input values are appended
after any other values. This ensures that mapped data does not overwrite any existing value.
EMC Documentum xCelerated Composition Platform Version 1.6 Best Practices Guide 41