UNIT II BUSINESS ANALYSIS CS2032 DATA WAREHOUSING AND DATA
MINING
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Contents Reporting and Query tools and Applications Tool
Categories The Need for Applications Cognos Impromptu Online
Analytical Processing (OLAP) Need Multidimensional Data Model OLAP
Guidelines Multidimensional versus Multirelational OLAP Categories
of Tools OLAP Tools and the Internet
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Reporting and Query Tools and Applications Tool Categories
Reporting Tools Managed Query Tools Executive Information System
Tools OLAP Tools Data Mining Tools The Need for Applications Cognos
Impromtu Applications PowerBuilder Forte Information Builder
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Reporting Tools Production Reporting Tools Let companies
generate regular operational reports Support high volume batch jobs
Calculating and Printing Paychecks(3GL) COBOL, Information
Builders, Inc.s Focus(4GL) MITIs SQR(High-end Client/Server Tools)
Desktop Report Writers Let users design and run reports Graphical
Interfaces and Built-in charting functions Crystal Reports, Actuate
Reporting System, IQ objects
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Managed Query Tools Shield end users from the complexities of
SQL and database structures Meta layer Support asynchronous query
execution Integrate with web servers Embed OLAP and Data Mining
Features
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Executive Information System Tools Predate report writers and
managed query tools First deployed on Mainframes Allow to build
customized, graphical decision support applications Gives managers
and executives a high level view of business and access to external
sources Eg: Pilot Software, Forest and Trees, Comshare, Oracles
Express Analyzer
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OLAP Tools Provide and intuitive way to view corporate data
Aggregate data along common business objects Users can drill down,
across, or up levels in each dimension
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Data Mining Tools User variety of statistical and
artificial-intelligence algorithms Analyze the correlation of
variables in the data and ferret out interesting patterns and
relationships to investigate Example IBMs Intelligent Miner
DataMind Pilots Discovery Server Offers simple UIs plug in directly
to existing OLAP
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The Need for Applications Access Types to the data Simple
tabular from reporting Ad hoc user-specified queries Predefined
repeatable queries Complex queries Ranking Multivariable analysis
Time series analysis Data visualization, graphing, charting, and
pivoting Complex textual search Statistical analysis
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Cognos Impromptu Overview The impromptu Information Catalog
Object-oriented architecture Reporting Impromptu Request Server
Supported Databases
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Cognos Impromtu: Overview Enterprise solution for interactive
database reporting Object oriented architecture Ensures control and
administrative consistency across all users and reports GUI
Database reporting tool Supports single user reporting / multi
users reporting
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Cognos Impromtu: Information Catalog LAN based repository of
business knowledge and data access rules Insulates users from db
technical aspects Protects database Presents the database in a easy
way Administrators are free to organize database items
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Cognos Impromtu: OO Architecture Drives inheritance based
administration and distributed catalogs Governors Activities of
Governors Query activity Processing location Database connections
Reporting permissions User profiles Client/Server Balancing
Database Transactions Security by value Filed and table
security
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Cognos Impromtu: Reporting Picklists and prompts Custom
templates Exception reporting Conditional filters Conditional
highlighting Conditional display Interactive reporting Frames List
frame Form frame Cross-tab frame Chart frame Text Frame Picture
Frame OLE Frame
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Cognos Impromtu: Request Server Allows client to off-load the
query process to the server Scheduling regular and recurring
standard reports Reducing network traffic Runs on HP/UX 9.X, IBM
AIX 4.X, Sun Solaris 2.4 Support data maintain in ORACLE 7.x and
SYBASE System 10/11
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On-Line Analytical Processing(OLAP)(1) Need for OLAP
Multidimensional Data Model OLAP Guidelines Multidimensional versus
Multirelational OLAP Categorization of OLAP Tools MOLAP ROLAP
Managed Query Environment(MQE)
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On-Line Analytical Processing(OLAP)(2) State of the Market
Cognos PowerPlay IBI FOCUS Fusion Pilot Software OLAP Tools and the
Internet
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OLAP
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Multidimensional Data Model Viewing data as in a cube