Maintaining Data Warehouses on Web Enviroments
Yimin Li · Journal of Kunming University of Science and Technology · 2001
Data warehouse have emerged as on key technology for the integration of distributed information sources. Challenging issues for data warehouse solutions arise due to the dynamicity of the information sources on Web environments. This article shows up the types of dynamicity(such as data updates,schema changes, and constraint modification)as well as their generation. This article also identifies maintaining for data warehousing systems that occurs when the possibility of information source changes is taken into consideration. Such maintaining includes adapting wrappers to information source changes, adapting view definition to changes,or adapting the data content of the data warehouse. Lastly, Evolvable View Environment(EVE) system is outlined.