A Common Data Model for Meta-Data in Interoperable Environments
Alan Macfarlane, Julie A. McCann, H. Liddell · City Research Online (City University London) · 1996
A Common Data Model is a unifying structure used to allow heterogeneous environments to interoperate. An Object Oriented common model is presented in this paper, which provides this unifying structure for a Meta-Data Repository Visualisation Tool. The creation of this common model from the Meta-Data held in component databases is described. The role this common model has in interoperable environments is discussed, and the physical architecture created from the examination of the Meta-Data in the Repository common model is described. 1 Introduction Many Interoperable Database Management systems utilise a Common Data Model as a single structure which all of the components use, allowing application programs to access data transparently i.e. the Data Model in the component databases are transparent. The common model is not only a conflict resolution structure but also a way to describe the complete data resource held in many heterogeneous data sources. This paper focuses on the common mode...