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Data Warehouse Basics

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Data Warehouse

DefinitionsA data warehouse brings togetherall operative data sources in order

to provide this data in a scalableform to the whole organization.

The job of the warehouse is toprovide this data in a usable formto the whole organization.

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Warehouse properties

Subject-Oriented

Information is presented according to specific subjects or areas of interest, not simply ascomputer files. Data is manipulated to provide information about a particular subject. Forexample, the SRDB is not simply made accessible to end-users, but is provided structureand organized according to the specific needs.

Integrated

A single source of information for and about understanding multiple areas of interest. Thedata warehouse provides one-stop shopping and contains information about a variety ofsubjects. Thus the OIRAP data warehouse has information on students, faculty and staff,instructional workload, and student outcomes.

Non-Volatile

Stable information that doesnt change each time an operational process is executed.Information is consistent regardless of when the warehouse is accessed.

Time-Variant

Containing a history of the subject, as well as current information. Historical informationis an important component of a data warehouse.

Accessible

The primary purpose of a data warehouse is to provide readily accessible information to

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Data Warehouse

ObjectivesStandardized structuring and display of all businessinformationData is defined uniquely across the entire organization, in order to avoiderrors arising through varied definitions in different sources.

Simple access to business information via a single point of

entry:

Information must be combined homogeneously and consistently at acentral point from which it can be called up.

Highly-developed reporting for analysis with self service forall areas:

The system must be able to cope with the information needs of varieduser groups.

Quick and cost-efficient implementation:

Straight-forward loading of heterogenous data.

High performance environment. Data modeling from

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Differences Between a BI/DataWarehouse System andan OLTP System

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SAP Business Information

Warehouse

The SAP Business Information Warehouseenables you to analyze data from operativeSAP applications and from other business

applications and external data sources suchas databases, online services, and theInternet.

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SAP NetWeaver Business

IntelligenceAs a core component of SAP NetWeaver, BI

provides Data Warehousing functionality, aBusiness Intelligence platform, and a suite of

Business Intelligence tools that enablebusinesses to attain the maximum value fromthe information they collect.

BI provides flexible reporting and analysistools to support you in evaluating andinterpreting data, as well as facilitating itsdistribution.

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NETWEAVER BI

http://var/www/apps/conversion/current/tmp/scratch16938/SAP%20NetWeaver?%20BI%20Capabilities.pptxhttp://var/www/apps/conversion/current/tmp/scratch16938/SAP%20NetWeaver?%20BI%20Capabilities.pptx