Information Systems have a number of different areas of work:
- Information systems strategy
- Information systems management
- Information systems development
- Information systems security
There are a wide variety of career paths in the information systems discipline. "Workers with specialized technical knowledge and strong communications skills will have the best prospects. People with management skills and an understanding of business practices and principles will have excellent opportunities, as companies are increasingly looking to technology to drive their revenue." [3]
Types of information systems
As new information technologies are developed, new categories emerge that can be used to classify information systems. Some examples are:
- Transaction processing systems
- Management information systems
- Decision support systems
- Expert systems
- Office Automation
- Business intelligence
Information systems development
Information technology departments in larger organizations tend to strongly influence information technology development, use, and application in the organizations, which may be a business or corporation. A computer based information system, following a definition of Langefors[4], is:
- a technologically implemented medium for recording, storing, and disseminating linguistic expressions,
- as well as for drawing conclusions from such expressions.
which can be formulated as a generalized information systems design mathematical program.
Information systems development methodology
Information systems development methodology or ISDM is a tool kit of ideas, approaches, techniques and tools which system analysts use to help them translate organisational needs into appropriate Information Systems;
An ISDM is:-
'....recommended collection of philosophies, phases, procedures, rules, techniques, tools, documentation, management, and training for developers of Information Systems”. (Avison and Fitzgerald, 1988)
Information systems research
Information systems research is generally concerned with the study of the effects of information systems on the behavior of individuals, groups, and organizations.[5][6] Notable publication outlets for information systems research are the journals Management Information Systems Quarterly, Information Systems Research, Journal of the Association for Information Systems, and Communications of the Association for Information Systems.
Since information systems is an applied field, industry practitioners expect information systems research to generate findings that are immediately applicable in practice. However, that is not always the case. Often information systems researchers explore behavioral issues in much more depth than practitioners would expect them to do. This may render information systems research results difficult to understand, and has led to criticism.[7]
To study an information system itself, rather than its effects, information systems models are used, such as EATPUT.
http://www.thefreedictionary.com/information+system
