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Business Intelligence Systems
Chap 9
Objectives
• Q1 – Why do organizations need business intelligence?
• Q2 – What business intelligence systems are available?
• Q3 – What are typical reporting applications?
• Q4 – What are typical data-mining applications?
• Q5 – What is the purpose of data warehouses and data
marts?
Why do organizations need business
intelligence?
• Business intelligence is comprised of
information that contains patterns,
relationships, and trends about customers,
suppliers, business partners, and employees.
• Business intelligence systems process, store,
and provide useful information to users who
need it, when they need it.
What business intelligence systems are
available?
• A business intelligence (BI) system is an
information system that employs business
intelligence tools to produce and deliver
information.
• Business intelligence tools are computer
programs that implement a particular BI
technique. The techniques are categorized
three ways:
Business Intelligence Tools
– Reporting tools read data, process them, and format
the data into structured reports that are delivered to
users. They are used primarily for assessment.
– Data-mining tools process data using statistical
techniques, search for patterns and relationships, and
make predictions based on the results
– Knowledge-management tools store employee
knowledge, make it available to whomever needs it.
These tools are distinguished from the others because
the source of the data is human knowledge
It’s important that you understand the difference
between these business intelligence components:
– A BI tool is a computer program that implements
the logic of a particular procedure or process.
– A BI application uses BI tools on a particular type
of data for a particular purpose.
– A BI system is an information system that has all
five components (hardware, software, data,
procedures, people) that delivers the results of a
BI application to users.
What are typical reporting applications?
• Reporting applications input data from a
source(s) and apply a reporting tool to the
data to produce information. The reporting
system delivers the information to users.
• Basic reporting operations include sorting,
grouping, calculating, filtering, and
formatting.
Raw Data
• This figure shows
raw data before
any reporting
operations are
used.
• The figure on the left shows the raw sales data
sorted by customer names.
• The figure on the right shows data that’s been
sorted and grouped.
Sales Data Sorted by Customer Name
Sales Data, Sorted by Customer Name &
Grouped by Number of Orders &
Purchase Amount
Fig 9-5 Sales Data Filtered to Show Repeat Customers
 This figure shows even better information that’s been filtered and formatted
according to specific criteria.
• RFM Analysis allows you to
analyze and rank
customers according to
purchasing patterns as this
figure shows.
– R = how recently a
customer purchased your
products
– F = how frequently a
customer purchases your
products
– M = how much money a
customer typically spends
on your products
• The lower the score, the
better the customer.
• Online Analytical Processing (OLAP) is more
generic than RFM and provides you with the
dynamic ability to sum, count, average, and
perform other arithmetic operations on
groups of data. Reports, also called OLAP
cubes, use:
– Measures which are data items of interest. In the
next figure a measure is Store Sales Net .
• Dimensions which are characteristics of a measure. In the figure below a
dimension is Product Family.
Fig 9-7 OLAP Product Family by Store Type
• A presentation like what you saw in the prior
slide is often called a OLAP cube or a cube.
• Know that an OLAP cube and a OLAP report are the
same thing
• Users can alter the format of a report
• Its possible to Drill down into the available
data
Drilled down by store location and
store type
Further drilled down to just stores in
California
What are typical data-mining
applications?
Fig 9-11 Convergence Disciplines for Data Mining
 Businesses use statistical techniques to find patterns and relationships
among data and use it for classification and prediction. Data mining
techniques are a blend of statistics and mathematics, and artificial
intelligence and machine-learning.
Data mining
• Because data mining is a odd blend of terms
from different disciplines it is sometimes
referred to as knowledge discovery in
databases.
• There are two types of data-mining techniques:
– Unsupervised data-mining characteristics:
• No model or hypothesis exists before running the analysis
• Analysts apply data-mining techniques and then observe the
results
• Analysts create a hypotheses after analysis is completed
• Cluster analysis, a common technique in this category groups
entities together that have similar characteristics
– Supervised data-mining characteristics:
• Analysts develop a model prior to their analysis
• Apply statistical techniques to estimate parameters of a model
• Regression analysis is a technique in this category that measures
the impact of a set of variables on another variable
• Neural networks predict values and make classifications
 Market-Basket Analysis is a data-mining tool for determining sales
patterns.
 It helps businesses create cross-selling opportunities. Two terms used with
this type of analysis, and shown in the figure, are:
 Support—the probability that two items will be purchased together
 Confidence—a conditional probability estimate
Decision-Trees
• A decision tree is a hierarchical arrangement
of criteria that predicts a classification or
value. It’s an unsupervised data-mining
technique that selects the most useful
attributes for classifying entities on some
criterion. It uses if…then rules in the decision
process.
• Next are two examples.
Fig 9-13 Grades of Students from Past MIS
Class (Hypothetical Data)
Fig 9-14 Credit Score Decision Tree
What is the purpose of data warehouses and
data marts?
Fig 9-15 Components of a Data Warehouse
 Data warehouses and data marts address the problems companies have with
missing data values and inconsistent data. They also help standardize data formats
between operational data and data purchased from third-party vendors.
 These facilities prepare, store, and manage data specifically for data mining and
analyses.
 Figure 9-16, left, lists some of the data
that’s readily available for purchase
from data vendors
 Some of the problems companies
experience with operational data are
shown in figure 9-17 below.
 Granularity refers to whether
data are too fine or too coarse.
 Clickstream data refers to the
clicking behavior of customers on
Web sites.
 The phenomenon called the
curse of dimensionality—just
because you have more attributes
doesn’t mean you have a more
worthwhile predictor.
Here’s the difference between a data warehouse
and a data mart:
Fig 9-18 Data Mart Examples
 A data warehouse stores operational data and purchased data. It cleans and
processes data as necessary. It serves the entire organization.
 A data mart is smaller than a data warehouse and addresses a particular
component or functional area of an organization.

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Business intelligence systems

  • 2. Objectives • Q1 – Why do organizations need business intelligence? • Q2 – What business intelligence systems are available? • Q3 – What are typical reporting applications? • Q4 – What are typical data-mining applications? • Q5 – What is the purpose of data warehouses and data marts?
  • 3. Why do organizations need business intelligence? • Business intelligence is comprised of information that contains patterns, relationships, and trends about customers, suppliers, business partners, and employees. • Business intelligence systems process, store, and provide useful information to users who need it, when they need it.
  • 4. What business intelligence systems are available? • A business intelligence (BI) system is an information system that employs business intelligence tools to produce and deliver information. • Business intelligence tools are computer programs that implement a particular BI technique. The techniques are categorized three ways:
  • 5. Business Intelligence Tools – Reporting tools read data, process them, and format the data into structured reports that are delivered to users. They are used primarily for assessment. – Data-mining tools process data using statistical techniques, search for patterns and relationships, and make predictions based on the results – Knowledge-management tools store employee knowledge, make it available to whomever needs it. These tools are distinguished from the others because the source of the data is human knowledge
  • 6. It’s important that you understand the difference between these business intelligence components: – A BI tool is a computer program that implements the logic of a particular procedure or process. – A BI application uses BI tools on a particular type of data for a particular purpose. – A BI system is an information system that has all five components (hardware, software, data, procedures, people) that delivers the results of a BI application to users.
  • 7. What are typical reporting applications? • Reporting applications input data from a source(s) and apply a reporting tool to the data to produce information. The reporting system delivers the information to users. • Basic reporting operations include sorting, grouping, calculating, filtering, and formatting.
  • 8. Raw Data • This figure shows raw data before any reporting operations are used.
  • 9. • The figure on the left shows the raw sales data sorted by customer names. • The figure on the right shows data that’s been sorted and grouped. Sales Data Sorted by Customer Name Sales Data, Sorted by Customer Name & Grouped by Number of Orders & Purchase Amount
  • 10. Fig 9-5 Sales Data Filtered to Show Repeat Customers  This figure shows even better information that’s been filtered and formatted according to specific criteria.
  • 11. • RFM Analysis allows you to analyze and rank customers according to purchasing patterns as this figure shows. – R = how recently a customer purchased your products – F = how frequently a customer purchases your products – M = how much money a customer typically spends on your products • The lower the score, the better the customer.
  • 12. • Online Analytical Processing (OLAP) is more generic than RFM and provides you with the dynamic ability to sum, count, average, and perform other arithmetic operations on groups of data. Reports, also called OLAP cubes, use: – Measures which are data items of interest. In the next figure a measure is Store Sales Net .
  • 13. • Dimensions which are characteristics of a measure. In the figure below a dimension is Product Family. Fig 9-7 OLAP Product Family by Store Type
  • 14. • A presentation like what you saw in the prior slide is often called a OLAP cube or a cube. • Know that an OLAP cube and a OLAP report are the same thing • Users can alter the format of a report • Its possible to Drill down into the available data
  • 15. Drilled down by store location and store type
  • 16. Further drilled down to just stores in California
  • 17. What are typical data-mining applications? Fig 9-11 Convergence Disciplines for Data Mining  Businesses use statistical techniques to find patterns and relationships among data and use it for classification and prediction. Data mining techniques are a blend of statistics and mathematics, and artificial intelligence and machine-learning.
  • 18. Data mining • Because data mining is a odd blend of terms from different disciplines it is sometimes referred to as knowledge discovery in databases.
  • 19. • There are two types of data-mining techniques: – Unsupervised data-mining characteristics: • No model or hypothesis exists before running the analysis • Analysts apply data-mining techniques and then observe the results • Analysts create a hypotheses after analysis is completed • Cluster analysis, a common technique in this category groups entities together that have similar characteristics – Supervised data-mining characteristics: • Analysts develop a model prior to their analysis • Apply statistical techniques to estimate parameters of a model • Regression analysis is a technique in this category that measures the impact of a set of variables on another variable • Neural networks predict values and make classifications
  • 20.  Market-Basket Analysis is a data-mining tool for determining sales patterns.  It helps businesses create cross-selling opportunities. Two terms used with this type of analysis, and shown in the figure, are:  Support—the probability that two items will be purchased together  Confidence—a conditional probability estimate
  • 21. Decision-Trees • A decision tree is a hierarchical arrangement of criteria that predicts a classification or value. It’s an unsupervised data-mining technique that selects the most useful attributes for classifying entities on some criterion. It uses if…then rules in the decision process. • Next are two examples.
  • 22. Fig 9-13 Grades of Students from Past MIS Class (Hypothetical Data) Fig 9-14 Credit Score Decision Tree
  • 23. What is the purpose of data warehouses and data marts? Fig 9-15 Components of a Data Warehouse  Data warehouses and data marts address the problems companies have with missing data values and inconsistent data. They also help standardize data formats between operational data and data purchased from third-party vendors.  These facilities prepare, store, and manage data specifically for data mining and analyses.
  • 24.  Figure 9-16, left, lists some of the data that’s readily available for purchase from data vendors  Some of the problems companies experience with operational data are shown in figure 9-17 below.  Granularity refers to whether data are too fine or too coarse.  Clickstream data refers to the clicking behavior of customers on Web sites.  The phenomenon called the curse of dimensionality—just because you have more attributes doesn’t mean you have a more worthwhile predictor.
  • 25. Here’s the difference between a data warehouse and a data mart: Fig 9-18 Data Mart Examples  A data warehouse stores operational data and purchased data. It cleans and processes data as necessary. It serves the entire organization.  A data mart is smaller than a data warehouse and addresses a particular component or functional area of an organization.