|Oracle Workflow Developer's Guide|
Part Number B10284-02
A lookup type is a static list of values. These lists can be referenced by activities and by item type, message or activity attributes. For example, an activity can reference a lookup type for its possible result values, while a message attribute can reference a lookup type as a means of providing a list of possible responses to the performer of a notification.
When you define a lookup type, you associate it with an particular item type. However, lookup types are not item type specific; when you create an activity or an attribute, you can reference any lookup type in your current data store, regardless of the item type that the lookup type is associated with. See: To Create Lookup Types.