XML Schema Mappings

Holistic Schema Mappings for XML-on-RDBMS

When hosting XML information on relational backends, a mapping has to be established between the schemas of the information source and the target storage repositories. A rich body of recent literature exists for mapping isolated components of XML Schema to their relational counterparts, especially with regard to table configurations. In this paper, we present the Elixir system for designing “in...

Synthesizing transformations from XML schema mappings

XML schema mappings have been developed and studied in thecontext of XML data exchange, where a source document has tobe restructured under the target schema according to certain rules.The rules are specified with a mapping, which consists of a set ofsource-to-target dependencies based on tree patterns. The problemof building a target document for a given source document and...

A Schema-only Approach to Validate XML Schema Mappings

1 XML schema mappings using schema constraints and Skolem functions ?

A schema mapping is an executable specification describing transformation of data structured under different schemas. In this paper we discuss the problem of automatic generation of XML schema mappings using information provided by schemas and correspondences between schemas. Mappings are specified in a mapping language XDMap whose constructs are based on Skolem functions. We use Skolem functio...

Management of Executable Schema Mappings for XML Data Exchange

Executable schema mappings between XML schemas are essential to support numerous data management tasks such as data exchange, data integration and schema evolution. The novelty of this paper consists in a method for automatic generation of automappings (automorphisms) from key constraints and value dependencies over XML schemas, and designing algebraic operations on mappings and schemas represe...