... terminology, the better thedatawarehouse is The more time spent populatingthe values in an attribute column, the better thedatawarehouse is The more time spent ensuring the quality of the values ... Extraction is the first step in the process of getting data into thedatawarehouse environment Extracting means reading and understanding the source data and copying thedata needed for thedatawarehouse ... forms: the operational systems of record and thedatawarehouse Crudely speaking, the operational systems are where thedata is put in, and thedatawarehouse is where we get thedata out The users...
... The DataWarehouse Toolkit TheDataWarehouse Toolkit The Definitive Guide to Dimensional Modeling Third Edition Ralph Kimball Margy Ross TheDataWarehouse Toolkit: The Defi nitive ... speaking, the operational systems are where you put thedata in, and the DW/BI system is where you get thedata out Users of an operational system turn the wheels of the organization They take ... history, but rather update data to reflect the most current state Users of a DW/BI system, on the other hand, watch the wheels of the organization turn to evaluate performance They count the new orders...
... Architected Environment 87 TheDataWarehouse and Data Models 89 92 94 98 TheDataWarehouseData Model The Midlevel Data Model The Physical Data Model TE viii TheData Model and Iterative Development ... External/Unstructured Data and theDataWarehouse External/Unstructured Data in theDataWarehouse Chapter 263 295 Chapter 10 TheDataWarehouse and the Web 297 Supporting the Ebusiness Environment 307 Moving Data ... relating to datawarehouseThe next book in the series is Using theDataWarehouse (Wiley, 1994) Using theDataWarehouse addresses the issues that arise once you have built thedata warehouse...
... into thedatawarehouseThe act of integrating data is always a complex and tedious task Data flows from thedatawarehouse into the departmental /data mart environment Data in the departmental /data ... refers to the level of detail or summarization of the units of data in thedatawarehouseThe more detail there is, the lower the level of granularity The less detail there is, the higher the level ... types of data- lightly summarized data and “true archival” detail dataThedata in thedatawarehouse can go back 10 years Thedata that emanates from thedatawarehouse is “district” data that...
... - find thedata - access thedata - integrate thedata - merge thedata - build the report Figure 2.26 Where the costs and the activities are when a datawarehouse is built pany B uses the one-time ... to thedatawarehouse First, data that is used purely in the Uttama Reddy 90 CHAPTER corporate model data model data model datawarehousedata model data model operational data model datawarehouse ... incorrect data in thedatawarehouseThe first assumption is that incorrect data arrives in thedatawarehouse on an exception basis If data is being incorrectly entered in thedata warehouse...
... be moved from thedatawarehouse to thedata mart This movement of data from thedatawarehouse to thedata mart is analogous to the movement of data into thedatawarehouse from the operational ... between thedatawarehouse and thedata mart Datawarehousedata must be selected, accessed, and then reshaped to meet the needs of thedata mart Often thedata mart data resides in cubes The cubes ... from the granular data found in thedatawarehouseThedata structure found in any given data mart is different from thedata structure for any other data mart For example, the sales data mart data...
... In the case of thedata warehouse, the legacy data is passed only once to refresh thedata in thedatawarehouse ■ ■ The complexity of moving data directly from the legacy environment to the ... thedatawarehouse from the operational legacy environment and the ODS Once in thedata warehouse, the integrated data is accessed and analyzed there Update is not normally done in thedatawarehouse ... requirements for thedatawarehousethe job of the DSS analyst is much more difficult Typically, the technical meta data that describes thedatawarehouse contains the following: ■ ■ Data warehouse...
... technical communities The local datawarehouse serves the same function that any other datawarehouse serves, except that the scope of thedatawarehouse is local For example, thedatawarehouse for ... coordinate or share data with thedatawarehouse in France, but the local datawarehouse in Brazil does share data with the corporate headquarters datawarehouse in Chicago Or the local datawarehouse ... global datawarehouse Figure 6.11 The global datawarehouse may be staged at the local level, then passed to the global datawarehouse at the headquarters level For example, the Brazilian data warehouse...
... 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 datawarehouse is concerned There ... unstructured data becomes an adjunct to thedatawarehouseThe unstructured data is connected to thedatawarehouse by means of an index, and the unstructured data is brought into thedatawarehouse ... ■ The structure of thedatawarehouse to support the drill-down process ■ ■ Datawarehouse meta data for the DSS analyst to plan how the EIS system is built ■ ■ The historical content of the data...
... millisecond response time; thedatawarehouse is not Uttama Reddy TheDataWarehouse and the Web 309 Therefore, data passes from thedatawarehouse to the ODS Once in the ODS thedata waits for requests ... Another is that thedatawarehouse database designer is free to design thedatawarehouse environment however he or she sees fit Building theDataWarehouse Inside the ERP Environment Thedatawarehouse ... to the aid of the Web is thedatawarehouse itself, as well as the bulk storage overflow component of thedatawarehouse Figure 10.7 shows that data is periodically offloaded into thedata warehouse...
... of thedata break thedata up? ISSUE: Given the volume of data that is inherent to thedatawarehouse environment and the unpredictable usage of the data, it is mandatory that datawarehousedata ... from thedatawarehouseThedata needed to create the profile in the class IV ODS is found in thedatawarehouse 57 What testing facility will there be for thedata warehouse? ISSUE: Testing in the ... with the volume of data actually in thedatawarehouse environment The analysis of the volume of data in thedatawarehouse environment leads directly to the subject of the granularity of data...
... “Monitoring DataWarehouse Data. ” Although activity monitoring is very important, so is the monitoring of data itself in thedatawarehouseThe growth of the data, the quality of the data, and the actual ... “Creating theDataWarehouseData Model from the Corporate Data Model.” This paper outlines the steps you need to take to create thedatawarehousedata model from the corporate data model Data Mining: ... for the heuristic level of processing The final deliverable in the population of thedatawarehouse is the actual population of thewarehouse It is noted that the population of data into the warehouse...
... at the onset and through out the project – DataWarehouse Architect – ensures all the needed data is in thedatawarehouse – Business Intelligence Specialist (cube builder) – ensures all the ... Reporting Systems HR DataWarehouse DFW Novistar Energy Financials O&G DataWarehouse PREMAS P2000 Merak Others Aberdeen Oracle Financials Intl Systems Aberdeen DataWarehouse HR DataWarehouse Corp ... mgrs, analysts • Data may reside in ODS, datawarehouse or data mart • Issues you choose the right tool Source – HowData Operational Data or tools? Transformation Data Store Warehouse Systems...
... kho liệu Chương 2: Tổng quan DataWareHouse Nội dung chương trình bày tổng quan datawarehouse gồm: định nghĩa, đặc tính,mô hình, kiến trúc xu hướng tương lai datawarehouse Chương Tổng quan Microsoft ... CHƯƠNG TỔNG QUAN VỀ DATAWAREHOUSE Tóm lược nội dung: Nội dung chương trình bày tổng quan datawarehouse gồm: định nghĩa, đặc tính,mô hình, kiến trúc xu hướng tương lai datawarehouse 2.1 Định ... vào cuối tháng - Thống kê theo dõi: Hệ thống cung cấp cho người quản lý báo cáo để theo dõi sản lượng dịch vụ theo đầu số, mạng viễn thông, nhóm dịch vụ thời gian - Theo dõi lịch sử hoạt động...
... hàng DataWarehouse Tiền vay Phát hành séc Trái phiếu Hoạt động Thị trường Tiết kiệm Thẻ tín dụng Tích hợp Dữ liệu đưa vào theo cách thống Các HT điều hành Database A Mr J Smith DataWarehouse Database ... Smith DataWarehouse Database B Joe Smith Database C Smith, Joseph Mr J Smith Database D J Smith Database A bal-on-hand Database B balance Database C curr_bal Database D cash_avail balance Bt bin ... khai thác DataWarehouse 00:00 06:00 12:00 18:00 Các kiểu Nhà kho liệu Xí nghiệp (Data Warehouse) Phòng ban (Data Mart) Phân tích (OLAP) Kết xuất thông tin Kho liệu điều hành (ODS) Warehouse...
... liệu Dữ liệu Chính xác Chính xác thực tế thực tế Chất lượng Chất lượng Lịch sử Lịch sử DataWarehouseDataWarehouse Các thành phần công nghệ giải pháp Phần cứng phần mềm hệ thống Công nghệ ... Mở đầu Các khái niệm Các khía cạnh thiết kế triển khai Giải pháp Nhà kho liệu Oracle (Oracle Warehouse) Mức khái niệm logic Thông tin nhắc lại Nôi dung Các đòi hỏi thực tế liệu cho giải ... chứng minh lợi ích thực sự: chi phí, doanh thu lợi nhuận lợi ích khác Cần nhiều thời gian thay đổi theo yêu cầu Trên sở giải việc thu thập liệu Các thành phần chi phí Thiết kế, Xây dựng Khai...
... WarehouseData Fact data - Measures Dimension data - Query drivers Summary data - Pre-calculated data Fact Data and Tables Many fact tables in thewarehouseThe bulk of thewarehousedata ... enterprise-wide datawarehouse and localized data marts Recognize the difference between independent and dependent data marts Identify thedata that is stored in a datawarehouse Explain the features ... of data by examining where and why it is used List thedata models that may already exist in a company and describe where they may be useful to thewarehouse model Explain the two common data warehouse...
... administration Target data Target metadata data Apply Transformation Capture data Target data definitions Source/target mappings Source data definitions Source data Source metadata Hình 3.2.1:Tổng ... phần Nhà kho liệu Oracle Nền tảng công nghệ Oracle Warehouse Builder Oracle8 database Common Warehouse Meta Data Business Intelligence tools Oracle Data Mart Suite Các ứng dụng phân tích đầu vào ... Devlin DataWarehouse from Architecture to Implementation, AddisonWesley, 1997 [2] Gabrielle Gagnon Data Warehouse, An Overview, PC Magazine, February 22, 1999 [3] Deepak Gupta - Designing a Data...
... tử có tương tác với kho liệu Hình 13: Thedatawarehouse and external data Trang -43- Tìm hiểu DataWarehouse 3.4.Siêu liệu kho liệu (Metadata in theData warehouse) Siêu liệu yêu cầu có kiến ... 1.3 Đặc điểm Trước tiên DataWarehouse sở liệu lớn (very large database-VLDB) DataWarehouse thường đọc, phục vụ cho nhu cầu báo cáo, DataWarehouse hướng tính ổn định DataWarehouse lấy thông tin ... liệu (Metadata in theData warehouse) 44 3.5 Danh mục kho liệu (The datawarehouse catalog -DWC): 44 3.6 Các hệ thống vận hành (Operational systems) 46 3.7 Chức kho liệu (Data warehouse...
... ngày, dự án kỹ thuật mà trung tâm thực Theo nghiệp vụ thực hàng ngày Phòng tích hợp hệ thống em định chọn đề tài “ Xây dựng phần mềm quản lý hệ thống DataWarehouse Ngân hàng Công thương Việt Nam ... cáo thực tập tổng hợp Tên đề tài: Khoa: Tin học kinh tế “ Xây dựng phần mềm quản lý hệ thống DataWarehouse Ngân hàng Công thương Việt Nam “ Đây đề tài hay, việc thực đề tài giúp em tổng hơp ... tế 47B Báo cáo thực tập tổng hợp - Khoa: Tin học kinh tế Năm 1995, Trung tâm điện toán thành lập theo định số 234 NHCT/QĐ ngày 25/05/1995 Tổng Giám Đốc Ngân hàng Công thương Việt Nam Trung tâm...