CIS 2010 EXAM ONE STUDY GUIDE
CIS 2010 EXAM ONE STUDY GUIDE CIS 2010
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This 4 page Study Guide was uploaded by Jeanine McDonald on Friday February 19, 2016. The Study Guide belongs to CIS 2010 at Georgia State University taught by Jim Senn in Spring 2016. Since its upload, it has received 372 views.
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Date Created: 02/19/16
CIS STUD Y GUIDE Spring 2016 Study Soup: Jeanine McDonald more notes: https://studysoup.com/georgia-state-university//one-week-of-notes/cis- 2010,-first-week-notes?id=122704 Digital Advantage Technology: came before you did. Digital technology: stored with “0/1” 1=on 0= off; binary form. Bytes store information and give instructions. Anything in digital form has been sampled from analog. Analog is continuous; takes on any set of values. Anything digital can be reformed perfectly an infinite amount of time. Moore’s law: everything digital gets smaller, better, faster; the technology doubles its capability. User community communicates with business analysts, business communicates w/ programmers. Data are numbers (GPA), information (Name), knowledge (understanding). Generation Z; you. Y Generation most ppl in the workforce; bbyboomer. Hardware: computers, software: program, network: how you send data, database: where you store data. IT reduces the number of middle managers, changes the manager’s job, IT will eventually eliminate jobs. IS enabler of business process; executes process, captures/stores data, monitoring process performance. Business process- an ongoing collection of related activities to create a product/service; compromised of inputs, resources, outputs. Outsourcing develops strong non- routine thinking. CIO is the executive who is in charge of the IS function. In most modern organizations, the CIO works with the chief executive officer (CEO), the chief financial officer (CFO). Information Systems Applications Business barriers: elapsed time/delivering time and distance. Cross functional business overcomes this. Information systems are responsible keeping information readily available for users. Enterprise wide is integrated information (cross functional business) vs Functional Information Systems for specific realm of business ie marketing. ERP (Enterprise Resource Planning): integrates all of the business functions. CRM (customer relationship management) manage a company’s interaction with current/future customers. Supply chain management - product development, sourcing, and production. Role of Information Systems Operational role: maintain or increase productivity to carry out actives systematically. Impacts: processing-speed, accuracy, efficiency: transaction cost – cost of a sale or the cost of an order. Transaction processing systems trigger business processes, creates data, and belief of quality of service. Every business transaction creates data. Productivity – measure of efficiency output/input. Lower the costs the higher the productivity; selling more without having more costs. Strategic information systems (SISs) provide a competitive advantage by helping an organization implement its strategic goals and improve its performance and productivity. Any information system that helps an organization either achieve a competitive advantage or reduce a competitive disadvantage, qualifies as a strategic information system.Strategy is about choosing. Corporate strategy businesses focus or type of business they should be in. Business strategy how a business will compete; products/services. Strategic Thinking and Strategic Analysis Characteristics of a firm: business process: collection of related activities. Inputs, resources, products. Future of the firm is an important indicator of where the firm goes. Commodity products and services: products that satisfies a customer’s wants and needs. Value chain tool to describe and analyze the sequence of activities of inputs that reveal opportunities to alter costs and distinguish from competitors. Competitive stragtery how to win;identifies a buiness’s approach to compete,its goals, and the plans and policies. Generic strategies for competitive advantage is cost leadership/ differentation. Competitive scope: company is in one sector or multiple. information technologies simply offer tools that can enhance an organization's success through its traditional sources of competitive advantage, such as low cost, excellent customer service, and superior supply chain management. Strategic information systems (SISs) provide a competitive advantage by helping an organization implement its strategic goals and improve its performance and productivity. Switching costs locks in perferred customers, cost in money and time to persue product elsewhere.Entry barrier product/service expected by customers; what you need to enter market (bar needs license). Business model how does a company do business and with whom. Compenents: Target Customer,Value proposition,revuenue stragetry,prcing stratergy, channel stragtery, information systems strategy. Data mining process of searching for valuable business information in a large database, data warehouse, or data mart operations: (1) predicting trends and behaviors, and (2) identifying previously unknown patterns. Big Data is about predictions;customer information,data sensors,social/feedback data,images. Characterists volume,velocity,variety. The Data World: Data Driven Business Transaction processing: information that is divided into different operations. Relational database principles these related tables can be joined when they contain common columns. The uniqueness of the primary key tells the DBMS which records are joined with others in related tables. This feature allows users great flexibility in the variety of queries they can make. Data Hierarchy: bit>byte>field>record>file. Entity is a person, place, thing, or event. Instance of an entity is a specific, unique representation of the entity.Database provides users with access to all data, one set of program. File developed independently variation in data. Record grouping of logical related fields. Objectives of managing data/ of database management: minimizes data redundancy, data isolation, and data in consistency; maximizes data security, data integrity and data independence. Data independence applications and data are independent of one another; achieved by. Master data management single answer of truth for companies. Information siloes stands alone by itself. DBMS is a set of programs that provide users with tools to add, delete, access, modify, and analyze data stored in a single location. An organization can access the data by using query and reporting tools that are part of the DBMS or by using application programs specifically written to perform this function. DBMSs also provide the mechanisms for maintaining the integrity of stored data, managing security and user access, and recovering information if the system fails. Explicit knowledge- The more objective, rational, and technical types of knowledge. Tacit knowledge is the cumulative store of subjective or experiential learning; based on experiences. Data Communication, Networking, and Mobility Net neutrality: the principle that Internet service providers should enable access to all content and applications regardless of the source, and without favoring or blocking particular products or websites. Network types: LAN - connects two or more devices in a limited geographical region, usually within the same building, so that every device on the network can communicate with every other device. WAN- is a network that covers a large geographic area. WANs typically connect multiple LANs; contain routers. Backbone network interconnected networks providing the exchange of information apart of a specific organization. Intranet is shared content accessed by members within a single organization. Extranet is shared content accessed by groups through cross-enterprise boundaries; private networks that connect intranets. Internet is global communication accessed through the Web. A portal Web-based, personalized gateway to information provides relevant information from different IT systems and the Internet using advanced search and indexing techniques;passwords. Internet Protocol (IP) is responsible for disassembling, delivering, and reassembling the data during transmission; important because it connects computers. The transmission technology that breaks up blocks of text into packets is called packet switching. Each packet (data transmitted over the internet, small) carries sender's IP address, the intended receiver's IP address, the number of packets in the message, and the number of the particular packet within the message. When the packets reach their destination, they are reassembled into the original message. Why do organizations use packet switching? The main reason is to achieve reliable end- to-end message transmission over sometimes unreliable networks that may have transient (short-acting) or persistent (long-acting) faults. Benefits of 3G/4G – 3G uses digital signals and can transmit voice and data up to 384 Kbps when the device is moving at a walking pace, 128 Kbps when it is moving in a car, and up to 2 Mbps when it is in a fixed location. 3G supports video, Web browsing, and instant messaging. A 4G provide a secure all-IP (Internet Protocol)-based mobile broadband system to all types of mobile devices. Client/server computing form of distributed processing in which some machines (servers) perform computing functions for end-user PCs (clients).links two or more computers in an arrangement in which some machines, called servers, provide computing services for user PCs, called clients. The client requests applications, data, or processing from the server, which acts on these requests by “serving” the desired commodity. Near-field communication form contactless communication b/w devices like phones. Bluetooth; personal. Infrared; lights .Broadband is the transmission capacity of a communications medium faster than 4 Mbps downstream and 1 Mbps upstream. Internet providers : DSL -
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