16. A system according to claim 15, wherein: said means for copying the fourth reference to the third reference occurs only when the second user dictionary has been modified or created by the content portion of the subsequent hierarchical level.
16. A system according to claim 15, wherein: said means for copying the fourth reference to the third reference occurs only when the second user dictionary has been modified or created by the content portion of the subsequent hierarchical level. 17. A system according to claim 16, wherein: said means for copying the fourth reference to the third reference occurs only when a setup procedure SPDL element has been processed.