As part of a process, you can associate a Value Type with a field on an assignment or an automatic action which then automatically populates the field with a value taken from an existing attribute. For example, you could complete the Analyst field on an Assignment window with the name of the Creation User, to automatically assign an incident to the analyst who originally logged the incident.
If you use a value type on an automatic linking action, you can specify the current object for one side of the link. For example, you can set up an automatic linking action on a Change that will link the Change to a CI. You do this by creating a linking object and adding an action to create the link using the Manage Business Object Actions dialog in Object Designer. When you have created a window for the linking object and added the new action as an automatic action in Process Designer, you can now select . as the runtime value for the control when you set a Value Type for the process end of the link.
For information about creating Linking Business Objects, see Linking unlinked business objects.