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Introduction To SAP Bw Reporting | http://sapdocs.info Introduction To SAP Bw Reporting | http://sapdocs.info Presentation Transcript

  • BEx Query Designer Unit 1: Introduction to BW Reporting 7/17/2007
  • Data Warehouse System
    • A data warehouse system serves primarily to stage information from various data sources.
    • The information is staged in various forms including personalized reports, freely definable queries, and predefined reports.
    • A data warehouse can:
      • Pool data from different, mostly heterogeneous sources
      • Overcome this heterogeneity on different levels (system, schema, and data)
      • Stage data in the form required by the user
  • What We Expect from a Data Warehouse
    • The following demands are made on a data warehouse:
      • Standardized structuring and presentation of all company information
      • An easy-to-use, single-point of access to all company information
      • Sophisticated business reporting methods for self-service analysis at all levels
      • Fast and cost-effective installation
      • A high performance environment
      • Data staging from heterogeneous environment
      • Release of source systems and IT organization
      • Data access that is independent of the source system
      • Analysis of data over a specific period of time, and the storage of historical information (time-dependent master data)
  • SAP Business Information Warehouse
    • SAP BW provides the following:
      • Data warehousing system with optimized data structures for reporting and analysis
      • Separate system
      • OLAP engine and tools
      • Comprehensive data-warehousing architectural base
      • Automated data warehouse management
      • Pre-configuration using SAP global business know-how
  • Terminology and Objects in SAP BW: InfoObject
    • Business analysis-objects (customers, sales volumes, and so on) are called InfoObjects in SAP BW.
    • InfoObjects are divided into characteristics and key figures .
    • Characteristics can be further divided into units, time characteristics, and technical characteristics.
    • Key figures are all data fields that are used to store values or quantities.
  • Terminology and Objects in SAP BW: InfoCube
    • The central data containers that form the basis for reports and analyses in SAP BW are called InfoCubes .
    • They contain key figures (sales volumes, incoming orders, actual costs, and so on) and a link to the characteristics (that is, to the master data of the SAP BW system [cost centers, customers, materials, and so on]).
    • Key figures are stored in a single fact table, with the characteristics stored in individual dimension tables.
  • Terminology and Objects in SAP BW: InfoProvider
    • InfoProvider is the super-ordinate term for an object that you can use to create reports in Business Explorer (BEx).
    • InfoProviders deliver data that can be analyzed using a query.
    • InfoProviders can deliver data from physical data stores…
      • InfoCubes
      • ODS Objects
      • InfoObjects
    • … or logical views of physical data stores…
      • InfoSets
      • Remote Cubes
      • Virtual InfoCubes
      • MultiProviders
  • Terminology and Objects in SAP BW: Operational Data Store (ODS)
    • An ODS is a data store in which data is stored at a basic level (document level).
    • This data is often from various data sources and/or source systems.
    • ODS objects should be reported very selectively because ODS objects are not built for reporting purposes other than in drill-down paths to retrieve a few detailed records.
  • Terminology and Objects in SAP BW: MultiProviders
    • Multi-Providers combine data from of all types of InfoProviders (InfoCubes, ODS Objects, InfoObjects and InfoSets).
    • Multi-Providers do not store the data, but access the data from the underlying InfoProviders.
    • Multi-Providers require additional processing in SAP BW.
    • Multi-Providers should be used sparingly – only when you really need to combine data from two different InfoProviders.
  • Business Information Warehouse Architecture
    • SAP BW enables Online Analytical Processing (OLAP) for staging information from large amounts of operative and historical data.
    • OLAP technology permits multi-dimensional analyses according to various business perspectives (slice and dice).