Exam Study Sheet

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Ryerson University
Information Technology Management
ITM 102
Ross Mc Naughton

Chapter 1 Knowledge Worker – A professional who performs knowledge work Knowledge Work – Intellectual activity that is performed by people upon data, info, and knowledge • Discovery • Transformation • Analysis • Synthesis • Communication Business – Organization with one or more people who: 1. Decide upon goals to pursue 2. Locate and organize resources 3. Create processes to reach goal The Business Environment – Consists of: Customers, Competitors, Governments, and Suppliers Globalization - Expanding the market globally, finding low cost suppliers, create 24hour work days Internet – A large number of computer networks RFP = Request for Proposal Data – Raw facts Information – Organized Data Knowledge – When a person combines experience and judgment with information Explicit – Textbook Tacit – Experience Information System – Organized collection of People, Information, Business processes, and Information Technology, designed to transform inputs into outputs to achieve a goal. IS enhances knowledge work, decision making, problem solving, communicating, and coordinating Transaction Processing Systems – Captures and processes transactions Management Information Systems – Provides timely information Decision Support Systems – Provides analytical / visualization tools to support decision making Enterprise Resource Management – Centralize and standardize the storage/management of data Customer Relationship Management – Integrates customer information to understands the customer’s needs Life Cycle of IS 1. Business Modeling (Model) 2. Requirements (What to Do) 3. Analysis & Design (Layout & Feature) 4. Test (Trial = Beta) 5. Development 3 Ways of system conversion: 1. Crash Conversion (Throw away Friday, New on Monday) 2. Parallel Conversion (Both systems running at same time) 3. Pilot Conversion (Test on small group of people) Information System Security – Protects people, information, software, hardware, networks, and organizations www.notesolution.com Chapter 2 Hardware – Tangible electronic and mechanical components Processing – Directs execution of instructions and transformation of Data Memory – Temporarily stores data and information before and after processing Input – Data into a device Output – Retrieve data from a device Storage – Stores data, information, and instructions for the long term Communications – Connects one IT device to another Software – Instructions that direct the hardware Central Processing Unit CPU – Chip composed of millions of transistors. Speed is measured in gigahertz (billions of cycles per second) Transistor – Switch that can be On (1) or Off (2) Read Only Memory ROM – Instructions that are not meant to be changed or changed infrequently Random Access Memory RAM – Temporary memory Memory – Measured in bytes (Thousands = Kilo, Millions = Mega, Billions = Giga) Firmware – Software built into chips System Software – Controls the hardware associated with a system Operating Systems (OS) Software – Coordinates and handles the details of working with the computer hardware Utility Software – Provides additional tools to maintain and service the system Productivity Software – Software used by knowledge workers to work with data, information, and knowledge Document Preparation Software – Creating documents composed of text, images, and graphics Electronic Spreadsheet Software – Used to perform general calculations and analyses Presentation Graphics Software – Preparing slides and graphics for business presentations Database Management System – Design, Create, Update, and Query data Personal Information Management – Used to manage personal information Computer Network – Consists of Data, Special Hardware, Software allowing computers to share data, and Communications media to link computers together Local Area Network – Small area (Building) Wide Area Network – Connects over regions, countries, and continents Protocol – A set of rules allowing communication of data between nodes on a network www.notesolution.com Chapter 3 Knowledge Work Activities • Discovery – Finding data, information, and knowledge relevant to a task (Search Engine) • Analysis – Investigation and examination of data, information, and knowledge (Spreadsheet) • Transformation – Organizes the results of analysis activities, and transforming into information (DBMS) • Synthesis – Discovery of trends or patterns • Communication – Sharing with others Decision – A choice of actions to take or not in a given situation Structured Decision – Programmed, routine or repetitive Semistructured Decision – Involves uncertainty or doubt about the outcome Unstructured Decision – Involves significant amount of uncertainty about the outcome Problem Solving: Investigate, Analyze, Decide, Do www.notesolution.com Chapter 4 Stakeholder – Person that has an interest or influence on how a business will function Feedback – Output by business process that’s returned to the system and used to control future inputs Organizational Structure • Functional • Decentralized • Matrix (Uses Teams) Value Chain – Series of activities, each adding value or supports the addition of value to the firms goods or services Primary Activities – Related directly to the production and distribution of the organizations products and services Support Activities – Supports the creation of business value IT can be added to value chain activities to create value in 3 ways: • Automating – Uses technology to perform tasks faster, cheaper and consistently/accurately (Can lower cost structure) • Informating – Recognizing and executing process. Also creates new data. • Transforming – Use IT to acquire or continue a competitive advantage Cost Advantage – Delivers same benefits at a lower cost Differentiation Advantage – Delivers superior benefits Resource-Based View – Gains competitive advantage through the development of distinctive competencies Resources/Capabilities > Distinctive Competencies > Competitive Advantage > Value Creation Distinctive Competencies – Enable innovation, quality, efficiency and responsiveness www.notesolution.com Chapter 5 Computer Hierarchy • Super Computer – Largest (Intensive applications) • Mainframe – Large (Organizational processing) • Server Farms – Medium (Network processi
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