5.3.6.1   Parameter Type

The Parameter type defines how the field may be used in a tree. The six possible types are as follows:

• IN – The data field is read-only, and passes values into the selection tree for evaluation.
• OUT – The data field is read and write accessible, and is used to store the results of the tree execution. An out field has no initial value.
• VARIABLE – The data field can store values in the tree, for example, interim results of calculations.
• VALIDATION – The data field is used for test and debug purposes and cannot be included in the execution of a selection tree,
• VIRTUAL - The data field is read-only, and passes values into the selection tree for evaluation. The field is always mandatory in any service it is added to. The data in the field is not visible in the simulation panel.
• WORKING – This type is no longer used. It exists for backward compatibility reasons.