During the development of federated IS that make use of non-homogenous databases and data sources, XML documents are often used for data exchange among the local subsystems, while their corresponding XML Schemas are generated using the standard CASE tools for local systems. External data schemes of those systems must be specified in a unified common model. An assumption is given that OBJECT PROPERTY (OP) model is being used for the semantic integration of the local non-homogenous subsystems. A graphical editor was developed that can be used to specify relation objects, their identifiers, complex and multi-valued object attributes. As OP model’s semantic expression capabilities can map those available in XML, additionally rules have been defined and implemented that can transform specific OP model structures into XML Schemas. Also algorithm is specified that can be used to extract tree-like structures from the model.Example transformations are performed that illustrate the process of generation of XML Schemas documents from sample OP models.
| Identifer | oai:union.ndltd.org:LABT_ETD/oai:elaba.lt:LT-eLABa-0001:E.02~2006~D_20060113_215001-30663 |
| Date | 13 January 2006 |
| Creators | Menkevičius, Saulius |
| Contributors | Gudas, Saulius, Butleris, Rimantas, Butkienė, Rita, Paradauskas, Bronius, Lenkevičius, Antanas, Stulpinas, Raimundas, Bareiša, Eduardas, Lopata, Audrius, Kiauleikis, Valentinas, Kaunas University of Technology |
| Publisher | Lithuanian Academic Libraries Network (LABT), Kaunas University of Technology |
| Source Sets | Lithuanian ETD submission system |
| Language | Lithuanian |
| Detected Language | English |
| Type | Master thesis |
| Format | application/pdf |
| Source | http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2006~D_20060113_215001-30663 |
| Rights | Unrestricted |
Page generated in 0.002 seconds