Enterprise information system

An occupational information system is an information system whose primary role is the operational functions to make data available efficiently.

There are different approaches to create an operational information system:

Function-oriented approach

In the function-oriented implementation of an operational information system, first operational functions are considered ( eg shopping ). For every function data structures now be determined, which are reflected in separate databases.

Since data for all the different functions have to be separately stored, is the consequence of such an implementation of redundancy. This also leads to problems in the integrity of security. The cross-functional analysis of the data difficult. Elaborate updates must ensure the alignment of the data.

Data -oriented approach

In the data-oriented implementation of a corporate information system, however, the data is first function regardless considered relevant for the analyzed operational functions. It is a global conceptual data model will thus aim, which is reflected in a common database.

In this way, a redundancy is avoided that facilitates integrity protection, and increased system stability.

The management of the data base is performed by a database management system ( DBMS ).

Business process -oriented approach

Today, before the introduction of an operational information system, which includes the whole enterprise (ERP), the so-called business process reengineering is performed. The aim is to create a business model that spans all business processes of a company.

As more and more in modern logistics forms (JIT, Kanban ), suppliers and customers are involved with the processes of different people in different locations can be processed at different times. Therefore, it is necessary to align the information systems according to the business processes.

Components

In business information systems, several subcategories can be distinguished. Frequently the following distribution is chosen.

• Administration and scheduling systems (systems of operational use)
• Management systems ( systems for decision making and planning support)
• Cross-section systems ( cross-divisional auxiliary systems, eg for communication, Office programs )

• Economic computer science
• Information System