Intro to Information Systems
Terms
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- What is data
- raw facts, such as an employee's name and number of hours worked in a week, inventory part numbers, or sales orders
- Information
- collection of facts organized in such a way that they have additional value beyond the value of the facts themselves
- Information system
- a set of interrelated components that collect, manipulate, and disseminate data and information and provide a feedback mechanism to meet an objective
- input
- activity of gathering and capturing raw data
- processing
- converting or transforming data into useful outputs
- output
- production of useful info, usually in the form of documents and reports
- feedback
- output that is used to make changes to input or processing activities
- forecasting
- predicting future events to avoid problems
- CBIS
- consists of hardware, software, databases, telecommunications, people and procedures that are configured to collect, manipulate, store and process data into information
- computer-based information system
- What is CBIS
- hardware
- computer equipment used to perform input, processing, and output activities
- software
- the computer programs that govern the operation of the computer
- database
- an organized collection of facts and information
- telecommunications
- the electronic transmission of signals for communications; enables organizations to carry out their processes and tasks through effective computer networks
- networks
- connected computers and computer equipment in a building, around the country or around the world to enable electronic communications`
- Internet
- the worlds largest computer network, actually consisting of thousands of interconnected networks, all freely exchanging information
- intranet
- an internal network based on Web technologies that allows people within an organization to exchange info and work on projects
- extranet
- a network based on Web technologies that allows selected outsiders, such as business partners and customers, to access authorized resources of the intranet of a company
- The components of CBIS
- hardware, software, databases, telecommunications, people, procedures
- What is an information system
- collect (input), manipulate(process), and disseminate (output)and provide a feedback mechanism to meet an objective
- procedures
- the strategies, policies, methods and rules for using a CBIS
- e-commerce
- involves any business transaction executed electronically between parties such as companies(bus to bus), companies and consumers, consumers to consumers, bus and public or consumer and public
- transaction
- any business related exchange such as payments to employees, sales to customers and payments to suppliers
- TPS
- an organized collection of people, procedures, software, databases, and devices used to process completed business transactions
- ERP
- a set of integrated programs that is capable of managing a company's vital business operations for an entire multisite, global organization
- MIS
- an organized collection of people, procedures, software, databases and devices used to provide routine info to managers and decision makers
- DSS
- Decision support system
- artificial intelligence
- a field in which the computer system takes on the characteristics of human intelligence
- expert system
- a system that gives a computer the ability to make suggestions and act like an expert in a particular field.
- virtual reality
- Originally the term referred to immersive reality which means the user becomes fully immersed in an artificial, three dimensional world that is completely generated by a computer
- systems development
- the activity of creating or modifying existing business systems
- organization
- a formal collection of people and other resources established to accomplish a set of goals
- value chain
- a series of activities that includes inbound logistics, warehouse and storage, production, finished product storage, outbound logistics, marketing and sales and customer service
- technology diffusion
- a measure of how widely technology is spread throughout the organization
- technology infusion
- the extent to which technology is deeply integrated into an area or dept
- TAM
- Technology acceptance model
- five-force model
- a widely accepted model that identifies five key factors that can lead to attainment of competitive advantage
- Name the five forces according to Porter
- rivalry among existing competitors, the threat of new entrants, the threat of substitute products and services, the bargaining power of buyers and the bargaining power of suppliers
- How do you attain competitive advantage according to Porter
-
alter industry structure,
create new products and services, improve existing product lines and services - First stage of IS was oriented toward?
- cost reduction and productivity
- 2nd stage of IS
- Defined by Porter, oriented toward gaining a competitive advantage
- current stage of IS
- shift toward performance based management using productivity, return on investment, net present value and other performance measures
- quality
- ability of a product or service to meet or exceed customer experience
- productivity=
- output/input x100%
- ROI
- one measure of IS value that investigates the additional profits or benefits that are generated as a percentage of the investment in information systems technology
- TCO
- measurement of the total cost of owning computer equipment, including desktop computers, networks and large computers
- Operations focuses on
- Efficiency rather than effectiveness
- 3 primary responsibilities of IS
-
operations
systems development
support - focus of systems analysts
- achieve and maintain information system effectiveness
- Information center
- support function that provides users with assistance, training, application development, documentation, equipment selection and setup , standards, technical assistance and troubleshooting
- certification
- process for testing skills and knowledge that results in a statement by the certifying authority that says an individual is capable of performing a particular kind of job
- information is data transformed into
- meaningful form
- The process of defining relationships between data requires
- knowledge
- ________is an awareness and understanding of a set of information and how that info can be made useful to support a specific task.
- Knowledge
- To be valuable ____________must have several characteristics: it should be accurate, complete, economical to produce, flexible, reliable, relevant, simple to understand, timely, verifiable, accessible, and secure
- information
- The value of _________ is directly linked to how it helps people achieve their organization's goals
- information
- _________ ________ are sets of interrelated elements that collect, manipulate and store and disseminate data and information.
- Information systems
- ______is the activity of capturing and gathering new data.
- Input
- ____________involves converting or transforming data into useful outputs
- processing
- __________involves producing useful information
- output
- ________ is the output that is used to make adjustments or changes to input or processing activities
- feedback
- Components of _________ include hardware, software, databases, telecommunications and networks, people, and procedures
- computer-based information systems
- The value of ________ is directly linked to how it helps decision makers achieve the organization's _______
- information; goals
- Types of Information Systems can be classified into four basic groups
-
e-commerce
TPS (transaction processing systems)
MIS and DSS (management info systems and decision support systems)
Special-purpose business information systems - Fastest growing segment of e-commerce
- business-to-business transactions
- The most fundamental IS is the______ ______`
- transaction processing system
- order processing, purchasing, accounting and related systems are all part of ______ __________ _________
- transaction processing system
- ____ _____ _____ is a set of integrated programs that is capable of managing a company's vital business operations for an entire multi-site, global organization
- Enterprise resource planning system
- ____ ___ ____ systems provide integrated software to support the manufacturing and finance business functions of an organization
- ERP
- MIS uses the info from a ____ to generate useful info for management decision making. the focus of MIS is primarily on
- TPS, operational efficiency
- Organized collection of people, procedures, databases and devices used to support problem-specific decision making
- DSS
- Dss differs from MIS because of support given to users, development and approach, system components, speed output and the emphasis is on______
- decisions
- Artificial intelligence systems, expert systems, virtual reality systems and other specialized info systems are called
- special-purpose business information systems
- designed to act as an expert consultant to a user who is seeking advice about a specific situation
- Expert system (ES)
- Gain a clear understanding of what the problem is
- systems investigation
- define what the system must do to solve the problem
- systems analysis
- determine exactly how the system will work to meet the business needs
- systems design
- create or acquire the various systems components defined in the design step
- implementation`
- maintain and then modify the system so that it continues to meet changing business needs
- maintenance and review
- Formal collection of people and various other resources established to accomplish a set of goals
- organization
- ______ processes increase the relative worth of the combined inputs on their way to becoming final outputs of the organization
- value-added
- Because _______ _____ are designed to improve productivity, methods for measuring the system's impact on productivity should be devised
- information systems
- There are three ways to measure the extent to which technology is used throughout the organization
- Technology diffusion, infusion and acceptance
- Technology _____ is a measure of how widely technology is in place throughout an organization
- diffusion
- Technology __ is the extent to which technology permeates an area or department
- infusion
- Technology _____ ______ investigates factors, such as perceived uefulness of the technology, ease of use of the technology , quality of the IS and degree to which the organization supports the use of the IS to predict information system usage and perform
- acceptance model
- _____ ______ is usually embodied in either a product or a service that has the most added value to consumers and that is unavailable from the competition or in an internal system that delivers benefits to a firm not enjoyed by its competition.
- Competitive advantage
- Strategies for achieving competitive advantage include
- enhancing existing products or services, develop new ones, change existing industry or create a new one.
- Key element for most organizations
- develop IS that measure and control productivity
- 2 useful measure of productivity
-
ROI-Return on investment
TCO-Total cost ownership - Role is to employ an IS department's equipment and personnel in a manner that will help the organization attain its goals
- CIO or Chief information officer
- determine what outputs they need from the system and construct the plans for developing the necessary programs that produce these outputs
- systems analysts
- Work with one or more programmers to make sure that the appropriate programs are purchase, modified from existing programs or developed
- systems analysts
- use the plans developed by the systems analyst to develop or adapt one or more computer programs that produce the desired outputs
- computer programmer
- Responsible for starting, stopping and correctly operating mainframe systems, networks, tape drives, disk devices, printers and so on
- computer operators
- set up and manage the network hardware, software and security processes
- LAN administrators
- In addition to technical skills, ___ ____ personnel also need skills in written and verbal communication, an understanding of organizations and the way they operate, and the ability to work with people(users)
- information systems
- These people are charged with the maintaining the broadest enterprisewide perspective
- Information systems personnel
- computer programs that govern the operation of a computer system are called
- software
- ____ involves creating or acquiring the various system components defined in the design step, assembling them and putting the new system into operation
- Systems implementation
- Involved in helping users determine what outputs they need and constructing the plans needed to produce these outputs
- systems analyst
- Use of information systems to add value to the organization can also give an organization a
- competitive advantage