In everyday speech, we do not always draw a clear distinction between the terms “data” and “information”, but the difference between the two is vital to the understanding of what IS is all about. Data is a collection of raw facts, each one of them insignificant when viewed in isolation. The purpose of an information system is to process that collection of raw facts in some way, so as to produce information that is useful to somebody.
For example, if the telephone directory contained a random assortment of 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. The facts (data) might all be present, but the information value of such a directory would be worthless. By associating each phone number with the name of the corresponding subscriber, and by sorting the list in alphabetical order of surname, information is produced. This helps to illustrate the inherent complexity of any information system – first you need to define what purpose it is going to serve (i.e. what information you want to produce), then you need to identify what data will be required in order to generate that information, work out how the data will be captured, how it will be stored, how it should be processed to get the desired result, and how the resulting information should be communicated to the person needing it.
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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