Summary

In this chapter you learned that:

• XML is capable of managing complexity.

• XML is not capable of scalability (it cant handle large data volumes ).

• XML data structure is similar to object database modeling.

• XML allows for schema flexibility. This is not necessarily an advantage.

• There are many native XML database products but initial investigation is encouraged.

• Not much is known about native XML databases because they are new to the commercial world in comparison to relational databases.

• Relational databases are extensively industry tested over decades of commercial use.

• Specific XML vocabularies cover both application types and specific industries.

• A native XML database can be used when it is appropriate.

• An appropriate use for a native XML database is in an environment of high structural complexity and small physical size .