25. The volatile or non-volatile machine-readable storage medium of claim 16 , wherein said source site defines a first version of said complex type; wherein said destination site defines a second version of said complex type; and wherein the one or more sequences of instructions causes the one or more processors to perform converting said logical representation to the second storage format by transforming said logical representation to represent said second version of said complex type.
25. The volatile or non-volatile machine-readable storage medium of claim 16 , wherein said source site defines a first version of said complex type; wherein said destination site defines a second version of said complex type; and wherein the one or more sequences of instructions causes the one or more processors to perform converting said logical representation to the second storage format by transforming said logical representation to represent said second version of said complex type. 28. The volatile or non-volatile machine-readable storage medium of claim 25 , wherein execution of instructions that conform to one or more XML languages causes said transforming said logical representation.