The information system in the company

Résumé du document

Disclosure and availability is the name of the business game. Thus, a company will be able to survive only if it has sufficient information (information which is presently available, which is relevant, reliable, precise and recent). Information is vital in a company as it executes its role with effectiveness and precision and thereafter, contributes to advocating good and just decisions at the appropriate moment. Through this, one can understand the significance of the installation of an information system. The sector of the information systems has undergone several changes over the years. The recent evolutions of this sector as well on the methodological level coupled with the plan of technologies and material architectures have returned and emphasized the analysis, the design and the deployment of the increasingly complex information systems. Presently, it has been observed that it is essential that the managers understand the significance of information systems. The main reason for this understanding is to ensure that the majority of the organizations need a strong base to survive and thrive. Hence, one needs to tackle the subject on information systems within the company.

Extraits

[...] One would thus have to consider the data resources as resources which should be managed in an effective way so that all the users of an organization can benefit from it. The data can take various forms, in particular: - The traditional alphanumeric form which consists of data composed of numbers and alphabetical natures. - The data text, which are composed of sentences and paragraphs being useful in the written communications. - The data image such as the graphic forms and figures. - Audio data like the human voice and other sounds. [...]

[...] Technologies of communication into three are generally gathered main categories: digital techniques of communication, those techniques of virtual conference and collecticiels Systems of compromise treatment : Systems of compromise treatment also called “Systems of treatment of the transactions” record, treat and update databases and produce reports and documents by using them data create by commercial transactions. The purchase order, invoice, the work order, the cheque of pay are examples of commercial transactions. The systems of compromise treatment are impossible to circumvent since for to make deals, we must manage commercial transactions. [...]

[...] We names these information systems of the systems of information inter- organisational. Thanks to the direct exchange of documents computerized (DEC) between computers of a extranet, the suppliers and a company can be transmitted transactions electronically commercial. DEC has several advantages for the manufacturing large companies, because, in addition to eliminating the impression, the checking and the handling of many forms, it's an important component of the electronic management of the supply chain between firms The information systems of management : The information systems of management provide reports formatted and summaries, products periodically or on request, which support the administrative offices (planning, organization, direction and control). [...]

[...] According to Peaucelle an information system indicates applications of data processing to the management of this time and their use by the companies”. Or Quinio (1999) which, in the same line, depicts them like whole of data-processing techniques used in an organization by individuals”. These two definitions primarily stress on the technique and preach a pragmatic vision of IS since they consist in apprehending them in their purely technological dimension. We can also quote, in this context, the definition given by Reix (2000) : information system is an organized whole of resources: hardware, software, personnel, data, procedures make it possible to acquire, process, store, communicate data in the form of data, texts, images, sounds 2. [...]

[...] Indeed, the information system is generally made up of the hardware, the software and the data. the hardware: The concept of material indicates all the apparatuses and the physical material being used for the data processing. More particularly, it includes not only the machines, like the computers and the other forms of equipment, but also all the supports used for the data, of the sheet of paper to the magnetic disk, among the elements which belong to the material, one can mention: _ The computing systems, which consist of central processing units of treatment containing of the microprocessors and all kinds inter- connected peripheral devices: microcomputer, computer exchanges _ The peripherals, apparatuses like the keyboard or the mouse, which is used to enter of the data and the orders and who allow the exit of information. [...]