a p t e r 7 MANAGING DATA RESOURCES 7.1 © 2002 by Prentice Hall LEARNING OBJECTIVES • COMPARE TRADITIONAL FILE ORGANIZATION & MANAGEMENT TECHNIQUES • DESCRIBE HOW DATABASE MANAGEMENT SYSTEM ORGANIZES INFORMATION * 7.2 © 2002 by Prentice Hall LEARNING OBJECTIVES • IDENTIFY TYPES OF DATABASE‚ PRINCIPLES OF DATABASE DESIGN • DISCUSS DATABASE TRENDS * 7.3 © 2002 by Prentice Hall MANAGEMENT CHALLENGES • TRADITIONAL DATA FILE ENVIRONMENT • DATABASE APPROACH TO DATA MANAGEMENT • CREATING DATABASE
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Financial Services Data Management: Big Data Technology in Financial Services Big Data Technology in Financial Services Introduction: Big Data in Financial Services ....................................... 1 What is Driving Big Data Technology Adoption in Financial Services?3 Customer Insight ........................................................................... 3 Regulatory Environment ................................................................ 3 Explosive Data Growth ........
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CHAPTER 2 DATA COLLECTION AND PRESENTATION 2.1 Data Collection This section aims to: 1. Identify‚ compare and contrast the different types of data; 2. List and explain the various techniques of selecting a sample; and 3. Enumerate and illustrate the different sampling techniques Types of Data Data is a collection of facts‚ such as values or measurements. It can be numbers‚ words‚ measurements‚ observations or even just descriptions of things. Two types of Data Primary Data means original
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How Data and Programs Are Represented in the Computer by: Rob Shepherd CS300 Professor: Fred Kellenberger Contents: 1.Introduction 2.The Parity Bit 3.Machine Language 4.How Computer Capacity is Expressed 5.The Processor‚ Main Memory‚ and Registers a. The processor b. Specialized Processor Chips c. CISC‚ RISC‚ and MPP d. Main Memory 7.Registers 8.The Machine Cycle 9. References Introduction: This paper is going to take a look at what
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2.1. DATA AND INFORMATION Data Data is the raw materials from which information is generated. Data are raw facts or observations typically about physical phenomena or business transactions. It appears in the form of text‚ number‚ figures or any combination of these. More specifically data are objective measurements of the attributes (the characteristics) of entities (such as people‚ places‚ things and events) According to Loudon and Loudon- “Streams of raw facts representing events
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Data Mining DM Defined Is the analysis of (often large) observational data sets to find unsuspected relationships and to summarize the data in novel ways that are both understandable and useful to the data owner Process of analyzing data from different perspectives and summarizing it into useful information A class of database applications that look for hidden patterns in a group of data that can be used to predict future behavior. DM Defined The relationships and summaries derived
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of the research project specifies both the data that are needed and how they are to be obtained. The first step in the data-collection process is to look for secondary data. These are data that were developed for some purpose other than for helping to solve the problem at hand. The data that are still needed after that search is completed will have to be developed specifically for the research project and are known as primary data. The secondary data that are available are relatively quick and
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Data Input Methods Optical data readers The best data input method for printed questionnaires would be Optical Data Readers. Optical Data Readers are a special type of scanning device to be used on documents. Optical Data Readers fall under two categories‚ optical mark recognition (OMR) and optical character recognition (OCR) (Stair‚ R.‚ Reynolds‚ G.‚ 2004). Printed questionnaires which‚ for instance‚ can be used for surveying groups of people regarding a particular subject can utilize OMR through
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gives a good approximation to his future demand patterns. Let G be the random variable: profit on a future day. a) Calculate the Expected Value‚ E[ G ]‚ Variance‚ 2[ G ] and standard deviation‚ [ G ]‚ of his future daily profit. [Hint: You can calculate a profit corresponding to each number of
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How are data being represented in computers? Computers work with a binary number system that consists of only two digits - zero and one. Inside the computer binary number is represented by an electrical pulse. One means a pulse of electricity and zero means no pulse. All the data entered into computers is first converted into the binary number system. One digit in binary number system is called bit and combination of eight bits is called byte. A byte is the basic unit that is used to represent the
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