UserMap - an Exploitation of User-Specified XML-to-Relational Mapping Requirements and Related Problems
Abstract
In this paper we focus on enhancing of user-driven XML-to-relational mapping techniques which leave the mapping decisions in hands of users who specify their requirements using schema annotations. We describe our prototype implementation called UserMap which is able to exploit the annotations more deeply searching the user-specified 'hints' in the rest of the schema and applies an adaptive method on the remaining schema fragments.
Using a sample set of supported fixed mapping methods we discuss problems related to query evaluation for storage strategies generated by the system, in particular correction of the candidate set of annotations and related query translation. And finally, we describe the architecture of the whole system.