For Wrapped Doc/Lit operations, ABL allows you to use one or both of two alternate forms for accessing the operation INPUT and OUTPUT parameters using ABL procedures and functions. You can either access them in wrapped form as XML strings containing the complex data for each SOAP message (request and response) or you can access them in unwrapped form as several ABL parameters, in many cases, with simple ABL data types. You can overload these forms. That is, you can use both forms for the same operation in the same client session.