@phdthesis{Braumandl2002, author = {Braumandl, Reinhard}, title = {Quality of Service and Optimization in Data Integration Systems}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:739-opus-279}, school = {Universit{\"a}t Passau}, year = {2002}, abstract = {This work presents techniques for the construction of a global data integrations system. Similar to distributed databases this system allows declarative queries in order to express user-specific information needs. Scalability towards global data integration systems and openness were major design goals for the architecture and techniques developed in this work. It is shown how service composition, extensibility and quality of service can be supported in an open system of providers for data, functionality for query processing operations, and computing power.}, subject = {Dienstg{\"u}te}, language = {en} }