Data ,Information, Knowledge and Wisdom :
Data is a collection of raw facts. The purpose of an information system is to process that collection of facts in some way, to produce information that is useful.
For example, if the telephone directory contained random names, addresses and telephone numbers, in no particular order, and with no logical association between names and phone numbers, it would be of no use to anybody. By sorting the list in alphabetical order of surname, information is produced.
Knowledge consists of many pieces of related information, and has a structure or organization whereby each piece of information is linked to others.
Finally, wisdom adds yet another dimension by combining knowledge with experience,What is system?
A system is an organized assembly of components with special relationships between the components. The system does something, i.e. it has behavior or has a specific objective or purpose. Each component contributes specifically towards the behavior of the system and is affected by being in the system. If a component is removed, it will change the system behavior.
Elements of a System:
? Environment and Boundary
As soon as we identify a system, we define a boundary: what is inside the boundary belongs to the system; everything outside the boundary is not part of the system. However, most systems do not exist in isolation. Systems, or their components, inter-act with the world outside their
LECTURE 2 October 12, 2011
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boundary. The part of the outside world with which
المادة المعروضة اعلاه هي مدخل الى المحاضرة المرفوعة بواسطة استاذ(ة) المادة . وقد تبدو لك غير متكاملة . حيث يضع استاذ المادة في بعض الاحيان فقط الجزء الاول من المحاضرة من اجل الاطلاع على ما ستقوم بتحميله لاحقا . في نظام التعليم الالكتروني نوفر هذه الخدمة لكي نبقيك على اطلاع حول محتوى الملف الذي ستقوم بتحميله .
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