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Saturday, April 23, 2011

Chapter 9--Business Intelligence

Business Intelligence- information containing patterns,relationships,and trends
Business Intelligence system-an information system that employs business intelligence tools to produce and deliver information.
Business intelligence tool-is one or more computer programs that implement a particular BI technique.
Reporting tools-programs that read data from a variety of sources,process that data,format it into a structured reports,and deliver those reports to the user who need them.
Data mining-tools-process data using statistical techniques,many of which are sophisticated and mathematically complex.
Knowledge-management tools-are used to store employee knowledge and to make that knowledge available t0 employees,customers,vendors,auditors, and others who need it.
A business intelligence application-is the use of a tool on a particular type of data for a particular purpose.
A reporting application- is a BI application that inputs data from one or more sources and applies a reporting tool to that data to produce information
Reporting tools produce information from data using five basic operations: sorting,grouping,calculating,filtering,formatting
RFM analysis is a technique readily implemented using reporting tools is used to analyze and rank customers according to their purchasing patterns
Online analytical processing- a second type of reporting tool is more generic than RFM.
Unsupervised data mining- analysts do not create a model or hypothesis before running the analysis.
A decision tree is a hierarchical arrangement of criteria that predict a classification or a value.
To address these problems,many organizations choose to extract operational data into facilities called data warehouse and data marts.
Curse of dimensionality-the more attributes there are the easier its is to build a model that fits the sample data but that is worthless as a predictor.
Knowledge management is the process of creating value from intellectual capital and sharing that knowledge with employees,managers ,suppliers,customers,and others who need it.
Real simple syndication is a standard for subscribing to content sources.
Expert Systems- attempt to capture human expertise and put it into a format that can be used non experts.
A business intelligence application server- delivers those results in a variety of formats to devices for consumption by BI users.
Portal servers- are like web servers except that they have a customizable user interface.

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