31_091106_Chpt09 - Chapter 9 BI and IS for Decision Making...

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MIS 301 Introduction to IT Management Lizhen Xu IROM Department McCombs School of Business Chapter 9 BI and IS for Decision Making
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Class Business RFID case write-up Due Nov 9, Mon, beginning of class, hard copy Special Office Hours for RFID homework Today (Nov 6, Fri) 1:00~2:00pm Next class: RFID Case Discussion Bring your name tags!
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Chapter 9: Learning Objectives Why does storage size matter? Different BI systems Problems of operational data Brief introduction to Data mining
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Why Do We Need BI Systems? Every second: 2,000,000 emails; 31,000 text messages; 162,000 instant messages; Total online computer storage: 246 EB, 2007 600 EB, 2010 Drowning in data & starving for information
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How Big Is an Exabyte? Figure 9-1
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How Big Is an Exabyte? Kilobyte (KB) 10 3 (thousand) Typewritten page, 2KB Megabyte (MB) 10 6 (million) Small novel, 1MB Gigabyte (GB) 10 9 (billion) Pickup truck filled with books, 1GB Terabyte (TB) 10 12 (trillion) Lib of Congress, 10TB Petabyte (PB) 10 15 (quadrillion) All print material, 200 PB Exabyte (EB) 10 18 (quintillion) All human words ever spoken, 5EB
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Why Does Storage Size Matter?
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31_091106_Chpt09 - Chapter 9 BI and IS for Decision Making...

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