TY  - BOOK
AU  - Emad Saddad Abdelhakeim 
AU  - Ali Hamed Elbastawissy , 
AU  - Mahmoud Abdalwahed Rafea , 
AU  - Osman Hegazy , 
TI  - The change management in multidimensional structures in data warehouses / 
PY  - 2009///
CY  - Cairo : 
PB  - Emad Saddad Abdelhakeim , 
KW  - Data warehouses
KW  - External data sources
KW  - Multidimensional structures
N1  - Thesis (M.Sc.) - Cairo University - Faculty of Computers and Information - Department of Information System; Issued also as CD
N2  - Data warehouses integrates autonomous and heterogeneous External Data Sources (EDSs). EDSs change in time independently of each other and independently of the DW . That  integrates them . The dynamic nature of EDSs and real world lead to schema changes in DWs. The main problems with the traditional DWs are that it does not ; 1. support changes on multidimensional instances or multidimensional structures 2. provide appropriate analysis of data coming from different time periods that cause incorrectness querying a DW and 3 facilitate prediction of the future
UR  - http://172.23.153.220/th.pdf
ER  -