In a world where technological progress does not stand still for a day, one can often hear the term "information system". It is reproduced in different fields of activity by dissimilar people and often implies by itself not quite what it really means. So, we clarify the concept of information systems. And consider the aspects of society, where they are used.
What?
An information system is first and foremost a system, which means the totality of something. Its components can often exist separately, however, they bring the greatest benefit by interacting with each other. In this case, the concept of information systems is a combination of hardware, software and personnel aimed at entering, storing, processing and using data.
Distinguish between automatic and automated information systems. The former process data without the direct involvement of a person, according to a previously laid down algorithm. An example is a conveyor at a factory, the program of which provides that it moves at a certain speed.
The second (the concept of AIS) is characterized by the interaction of a machine and a person. Although most of the work is done by a computer, constant monitoring by the operator is required. For example, a system for issuing train tickets at the box office, where a nice girl enters information about you into the database, after which the travel document is automatically filled.
Where is it used?
Information storage and processing systems in our society occupy a huge place. The concept of information systems is not an empty phrase. Wherever we go, IP is everywhere. We’ll go online at home, and there we are already met by a search engine. Time. Have come to work - you need to make a report in a special program or to clarify the availability of goods in a remote warehouse using the company's information system. Two. The third number will go to the clinic through the registry. And the fourth is a wedding anniversary reminder on a mobile phone. Like it or not, you have to get used to all kinds of changes around you.
What is it based on?
First of all, IPs are focused on the concept of information. The properties of information make us aware of what is embedded in the system.
1. Relevance. The IS must always operate with the data that is currently correct, otherwise this may disrupt the correct course of events.
2. Completeness. Information is provided to the user in an amount sufficient to make a further decision.
3. Adequacy. The system must really assess the state of affairs.
4. Availability. It is possible to obtain all the necessary data.
5. Objectivity. Information should not depend on anything: the views of the operator, processing algorithms.
6. Usefulness. An automated system must first of all be necessary, that is, it is necessary that it meets the emerging needs. Otherwise, why is it even created?
To summarize
The concept of information systems includes a whole range of components. This hardware and software, operators, methods and algorithms. Over time, IP has increasingly penetrated our lives. And it seems that without them it is already impossible to do.