CAC1203 lesson 1.pptx - BCOM RISK MANAGEMENT AND INSURANCE...

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BCOM RISK MANAGEMENT AND INSURANCE INTRODUCTION TO INFORMATION TECHNOLOGY
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LESSON ONE OBJECTIVES Describe briefly module objectives and course outline Set ground rules Introduce Information Systems Identify and describe data and information used by different types of information Systems
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INFORMATION CONCEPTS INFORMATION CONCEPTS DATA VERSUS INFORMATION SYSTEMS THEORY INTRODUCTION TO INFORMATION SYSTEMS
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INFORMATION CONCEPTS DATA – are raw fact and figures for example employee numbers, total hours worked, inventory parts numbers INFORMATION – collections of facts and figures organized in such a way that they have additional value beyond the value of individual facts
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TYPES OF DATA DATA TYPE DESCRIPTION Alphanum eric Numbers, letters and other characters Image data Graphic images and pictures Audio data Sound noise and tones Video Data Moving images and pictures
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DATA TRANSFORMATION The transformation of data into information is a process A process is a set of logically related tasks performed to achieve a defined outcome The process of defining relationships among data to create useful information requires knowledge
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KNOWLEDGE It is the awareness and understanding of a set of information and the way that information can be made useful to support a specific tasks or reach a decision
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CHARACTERISTICS OF VALUABLE INFORMATION CHARACTERISTIC CHARACTERISTICS ACCESSIBLE RELEVANT ACCURATE RELIABLE COMPLETE SECURE ECONOMICAL SIMPLE FLEXIBLE TIMELY VERIFIABLE
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SYSTEM A set of interrelated components/ elements working together to achieve a certain goal Systems have inputs processes outputs and feedback
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SYSTEM COMPONENTS Input Processin g Output FEEDBACK
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EXAMPLE – UNIVERSITY Input Knowledge Process Output Feedback
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SYSTEM PERFORMANCE AND STANDARDS Can be measured in terms of Efficiency Effectiveness
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EFFICIENCY A measure of what is produced divided by what is consumed The value can range from 0 % to 100% For example the efficiency of a motor The energy generated () divided by the energy consumed (electricity or fuel)
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EFFECTIVENESS It is the extend to which a systems achieves its objectives Can be measured by dividing the goals set by the goals achieved (0 – 100%
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CLASS EXERCISE In pairs identify examples of systems stating inputs, outputs processes and feedback In the home In the Institution In Government In Industry
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INFORMATION SYSTEMS A set of interrelated components or elements that collect (input), manipulate (process), store and disseminate (output) data and information, and provide a corrective feedback .
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INFORMATION SYSTEMS IN ORGANIZATIONS An organization is a formal collection of people and other resources established to accomplish a set of goals An organization is a system – it consists of inputs, processing mechanisms, outputs and feedback
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INFORMATION SYSTEMS an organized combination of people, hardware, software, communications Networks and data resources that collects, transforms, and disseminates information in an organization
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