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Business Intelligence Systems
Chapter 9
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Study Questions
Q1: How do organizations use business intelligence (BI) systems?
Q2: What are the three primary activities in the BI process?
Q3: How do organizations use data warehouses and data marts to acquire data?
Q4: What are three techniques for processing BI data?
Q5: What are the alternatives for publishing BI?
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• Business intelligence (BI) mainly refers to computer-based techniques used in identifying, extracting, and analyzing business data.
• BI technologies - Online analytical processing (OLAP), analytics, data mining, process mining, complex event processing, business performance management, benchmarking, text mining, in-memory computing.
• Purpose of BI - provide historical, current and predictive views of business operations.
Business Intelligence
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Q1: How Do Organizations Use Business Intelligence (BI) Systems?
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Example Uses of Business Intelligence
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Q2: What Are the Three Primary Activities in the BI Process?
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Using BI for Problem-solving at GearUp: Process and Potential Problems
1. Obtain commitment from vendor 2. Run sales event3. Sells as many items as it can 4. Order amount actually sold5. Receive partial order and damaged items6. If received less than ordered, ship partial
order to customers7. Some customers cancel orders
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Tables Used for BI Analysis at GearUp
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Extract of the Item_Summary Table
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Lost Sales Summary Report
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Lost Sales Details Report
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Event Data Spreadsheet
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Short and Damaged Shipments Summary
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Short and Damaged Shipments Details Report
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Publish Results
• Options– Print and distribute via email or
collaboration tool– Publish on Web server or SharePoint– Publish on a BI server– Automate results via Web service
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Q3: How Do Organizations Use Data Warehouses and Data Marts to Acquire Data?
• Why extract operational data for BI processing? Security and control Operational not structured for BI analysis BI analysis degrades operational server
performance
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Functions of a Data Warehouse
• Obtain or extract data from operational, internal and external databases
• Cleanse data
• Organize, relate, store in a data warehouse database
• DBMS interface between data warehouse database and BI applications
• Maintain metadata catalog
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Components of a Data Warehouse
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Examples of Consumer Data that Can Be Purchased
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Possible Problems with Source Data
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Data Marts Examples
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Q4: What Are Three Techniques for Processing BI Data?
Basic operations:
1. Sorting
2. Filtering
3. Grouping
4. Calculating
5. Formatting
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Three Types of BI Analysis
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Analysts do not create a priori
hypothesis or model before running
analysis
Apply data-mining technique and observe results
Hypotheses created after analysis to explain patterns
found
Technique:• Cluster analysis to
find groups with similar characteristics
Unsupervised Data Mining
Technique 2: Dimension reduction
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Model developed before analysis
• Statistical techniques used prediction such as
• Regression analysis—measures impact of set of variables on one another
Example:
CellPhoneWeekendMinutes = 12 X (17.5 X CustomerAge) + (23.7 X NumberMonthsOfAccount) =12 + 17.5*21 + 23.7*6 = 521.7
Supervised Data Mining
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BigData
• Huge volume – petabyte (1015 Bytes) and larger
• Rapid velocity – generated rapidly
• Great variety Free-form text Different formats of Web server and database log
files Streams of data about user responses to page
content; graphics, audio, and video files
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MapReduce Processing Summary
Google search logs broken into pieces
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Google Trends on the Term Web 2.0
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Hadoop
• Open-source program supported by Apache Foundation2
• Manages thousands of computers
• Implements MapReduce– Written in Java
• Amazon.com supports Hadoop as part of EC3 cloud offering
• Pig – query language
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Q5: What Are the Alternatives for Publishing BI?
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What Are the Two Functions of a BI Server?
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How Does the Knowledge in ThisChapter Help You?
• Companies will know more about your purchasing habits and psyche.
• Singularity – machines build their own information systems.
• Will machines possess and create information for themselves?
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Ethics Guide: Data Mining in the Real WorldProblems:
• Dirty data
• Missing values
• Lack of knowledge at start of project
• Over fitting
• Probabilistic
• Seasonality
• High risk—cannot know outcome
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Guide: Semantic Security
1. Unauthorized access to protected data and information– Physical security
Passwords and permissions Delivery system must be secure
2. Unintended release of protected information through reports and documents
3. What, if anything, can be done to prevent what Megan did?
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FireFox Collusion
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Ghostery in Use (ghostery.com)