I find these papers from 1999 by Daniela Florescu more informative with regards to the benefits of the various schema available to map semi-structured data: ht

I find these papers from 1999 by Daniela Florescu more informative with regards to the benefits of the various schema available to map semi-structured data: http://dsl.serc.iisc.ernet.in/~course/TIDS/papers/daniela.pdf http://dsl.serc.iisc.ernet.in/~course/TIDS/papers/daniela.pd... http://faculty.ksu.edu.sa/mathkour/XML%20DB/A%20Performance%20Evaluation%20of%20Alternative%20Mapping%20Schemes%20%20%281%29.pdf http://faculty.ksu.edu.sa/mathkour/XML%20DB/A%20Performance%...