Schema Evolution publication categorizer

A prerequisite for enabling uniform access to metadata in distributed, autonomous repositories is to deal with the heterogeneities among metadata information objects. Metadata mapping is one possible
technique for handling incompatible metadata originating from distinct repositories and mapping solutions are its technical manifestation. Currently, there exists a variety of mapping solutions, with dierent conceptual
characteristics and varying potential of solving solving specic types of interoperability problems. In this work, we give a comprehensive overview of existing mapping solutions and systematically compare their features and characteristics. Our analysis shows that the majority of mapping solutions are standalone-systems and support experts in mapping
and integrating structured and semi-structured metadata. Solutions that conceive mapping as being a process and target broader metadata environments such as the Web are still rare.