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The term '''information system''' has the following meanings: |
The term '''information system''' has the following meanings: |
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Source: from book "Seguridad de la Informacion", 2004 ISBN 84-933336-7-0 |
Source: from book "Seguridad de la Informacion", 2004 ISBN 84-933336-7-0 |
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| − | <b>3.</b> In the [[mathematics|mathematical]] area of [[domain theory]], a [[Scott information system]] (after its inventor [[Dana Scott]]) is a mathematical structure that provides an alternative representation of [[Scott domain]]s and, as a special case, [[algebraic lattice]]s. |
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==See also== |
==See also== |
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Latest revision as of 09:34, 20 July 2012
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Psychology: Debates · Journals · Psychologists
The term information system has the following meanings:
1. A system, whether automated or manual, that comprises people, machines, and/or methods organized to collect, process, transmit, and disseminate data that represent user information.
2. Any telecommunications and/or computer related equipment or interconnected system or subsystems of equipment that is used in the acquisition, storage, manipulation, management, movement, control, display, switching, interchange, transmission, or reception of voice and/or data, and includes software, firmware, and hardware
Source: from Federal Standard 1037C and from MIL-STD-188 and from the National Information Systems Security Glossary
The simplest model that describes the Structure and Behaviour of an Information System takes five objects:
For Structure:
- Repositories, hold data permanent or temporarily, such as buffers, RAM, hard disks, cache, etc.
- Interfaces, exchange information with the non-digital world, such as keyboards, speakers, scanners, printers, etc.
- Channels, connect repositories, such as buses, cables, wireless links, etc. A Network is a set of logical or physical channels.
For Behaviour:
- Services; provide value to users or to other services via messages interchange.
- Messages; carries a meaning to users or services.
Source: from book "Seguridad de la Informacion", 2004 ISBN 84-933336-7-0
See also
- Information systems
- IPO Model
- Management Information Systems