CIS Ch. 12
Terms
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- systems thinking
- Recognizing systems, subsystems, components of systems and system interrelationships in a situation. Also known as a systems context or a systemic view of a situation.
- Prototyping
- The rapid development and testing of working models, or prototypes, of new information system applications in an interactive, iterative process involving both systems and end users.
- systems development life cycle
- A multi step process to conceive, design, and implement an information system.
- Cost/benefit analysis
- Identifying the advantages or benefits and the disadvantages or costs of a proposed solution.
- Economic Feasibility
- Whether expected cost savings, increased revenue, increased profits, and reductions in required investment exceed the costs of developing and operating a proposed system.
- Functional Requirements
- The information system capabilities required to meet the information needs of end users. Also called system requirements.
- postimplementation review
- Monitoring and evaluating the results of an implemented solution or system.
- Human Factors feasibility
- Do we have the right people to operate the new system?
- systems implementation
- The stage of systems development in which hardware and software are acquired, developed, and installed; the system is tested and documented; people are trained to operate and use the system; and an organization converts to use of a newly developed system.
- Systems analysis and design
- Studying in detail the information needs of users and any information systems presently used and then developing a system to correct a problem or improve operations.
- Organizational analysis
- Finding an optimum value for selected variables in a mathematical model, given certain constraints.
- tangible benefits and costs
- The quantifiable benefits and cost of a proposed solution or system.
- systems approach
- A systematic process of problem solving that defines problems and opportunities in a systems context. Data are gathered describing the problem or opportunity, alternative solutions are identified and evaluated. Then the best solution is selected and implemented, and its success evlaluated.
- data conversion
- Converting data into new data formats required by a new business application and its software and databases. Also includes correcting incorrect data, filtering out unwanted data and consolidating data into new databases and other data subsets.
- Documentation
- A collection of documents or information that describes a computer program, information system, or required data processing operations.
- Legal/political feasibility
- Determining whether or not any copyright or patent infringements may exist as the result of a new system.
- systems maintenance
- The monitoring, evaluating, and modifying of a system to make desirable or necessary improvements.
- End User development
- Managers and business specialists can develop their own e-business applications
- systems specifications
- The product of the systems design stage, It consists of specifications for the hardware, software, facilities, personnel, databases, and the user interface of a proposed information system.
- Conversion
- The process in which the hardware, software, people, network, and data resources of an old information system must be converted to the requirements of a new information system must be converted to the requirements of anew information system. This usually involves a parallel, phased, pilot, or plunge conversion process from the old to the new system.
- Implementation Process
- Includes acquisition, testing, training, and conversion to a new system.
- technical feasibiltiy
- Whether reliable hardware and software capable of meeting the needs of a proposed system can be acquired or developed by an organization in the required time.
- Feasibility Study
- A preliminary study that investigates the information needs of end users and the objectives, constraints, basic resource requirements, cost/benefits, and feasibility of proposed projects.
- User interface design
- Designing the interactions between end users and computer systems, including input/output methods and the conversion of data between human-readable and machine-readable forms.
- logical models
- Thought of as a blueprint of the current system which displays only what the current system does without regard to how it does it.
- Intangible Benefits/Cost
- The nonquantifiable benefits and cost of a proposed solution or system.
- Project Management
- Managing the accomplishment of an information system development project according to a specific project plan, in order that a project is completed on time, and within its budget, and meets its design.
- systems testing
- Checking whether hardware and software work properly for end users.