Building the Data Warehouse Third Edition phần 4 doc

... between the data found in the data warehouse and the profile data found in the class IV ODS. CHAPTER 3 144 ODS Fig 3.57 The data warehouse supports a class IV ODS. Uttama Reddy Data warehouse data ... support. The data in the data warehouse is analyzed, and periodically the data is placed in the ODS. The data that is shipped to the ODS is sh...

Ngày tải lên: 08/08/2014, 22:20

... the data warehouse environment. Two operating components are monitored on a regular basis: the data residing in the data warehouse and the usage of the data. Monitoring the data in the data warehouse ... one of the essences of the data warehouse is the flexible access of data. Large masses of data defeat much of the purpose of the data wareho...

Ngày tải lên: 08/08/2014, 22:20

... to the corporate data model as it is applied to the data warehouse. First, data that is used purely in the The Data Warehouse and Design 89 the corporate model, the operational model, and the data ... applications to gather information. This task includes the following: ■■ Finding the data needed for the report ■■ Accessing the data ■■ Integrating the d...

Ngày tải lên: 08/08/2014, 22:20

... local data warehouses. The corporate data model acts as the glue that holds the different local data warehouses together, as far as their intersection at the global data warehouse is concerned. There ... data ■■ The structure of the data warehouse to support the drill-down process ■■ Data warehouse meta data for the DSS analyst to plan how the EIS syste...

Ngày tải lên: 08/08/2014, 22:20

... Reddy Chapter 11 ERP and the Data Warehouse 311 ERP Applications Outside the Data Warehouse 312 Building the Data Warehouse inside the ERP Environment 3 14 Feeding the Data Warehouse through ERP ... Publishing W. H. Inmon Building the Data Warehouse Third Edition Uttama Reddy Bill Inmon, the father of the data warehouse concept, has written 40...

Ngày tải lên: 08/08/2014, 21:23

... In the case of the data warehouse, the legacy data is passed only once to refresh the data in the data warehouse. ■■ The complexity of moving data directly from the legacy environment to the multidimensional ... a data warehouse onto different vendor platforms is not advisable. Meta Data in the Data Warehouse Environment The role of meta data in t...

Ngày tải lên: 08/08/2014, 22:20

... for each local data warehouse. For instance, the way that the Hong Kong data maps into the global data warehouse is different from how the Brazil data maps into the global data warehouse, which ... population of the corporate data ware- house from the local levels. The source of the data going to the corporate data warehouse can come from the local...

Ngày tải lên: 08/08/2014, 22:20

... reorganizes data. The data passes out of the Granular- ity Manager into the data warehouse. The interface for moving data from the warehouse to the Web is a little more complex. Data passes from the data ... Another is that the data warehouse database designer is free to design the data warehouse environment however he or she sees fit. Building the...

Ngày tải lên: 08/08/2014, 22:20

... ODS is fed from the data warehouse. The data needed to create the profile in the class IV ODS is found in the data warehouse. 57. What testing facility will there be for the data warehouse? ISSUE: ... with the volume of data actu- ally in the data warehouse environment. The analysis of the volume of data in the data warehouse environment leads di...

Ngày tải lên: 08/08/2014, 22:20

... done “Monitoring Data Warehouse Data. ” Although activity monitoring is very impor- tant, so is the monitoring of data itself in the data warehouse. The growth of the data, the quality of the data, and the ... shows that the data model is at the heart of the data- driven methodology. The data model relates to the design of operational data, to the d...

Ngày tải lên: 08/08/2014, 22:20