Budas, S., A framework for research of Lformatior, processing hierarchy in enterprise, Mathematics and Computers in Simulation 33 (1991) 281-285. The paper deals with the framework for decomposition of qz&zational system (enterprise). Tile mc-f;;;, of \enterprise as the system of data, knowledge, objective structures and their interactions are analyzed. A certai.; unit of management -the elementary cycle of managingis singled out and discussed. Here the two-dimen snional structure of objectives of organizational system is introduced and the pecuiiarities of the managing m enterprise xe discussed. Development of modem computer aided design methods of Management Pnformation Systems (MIS) needs a more comprehensive framework or model for research. Possibilities of computerbased MIS are closely related with the properties of the basic model of real world (enterprise), used as a conceptual base for MIS. The paper presents a model of information processing in managing'an enterprise. The system of data, knowledge and objectives, structures (hierarchies) and their interactions is explained and illustrated.
This approach for the modelling of information processing presupposes the MIS environment to be a type of large system termed as "organizational" systems [4]. Research of organizational systems is rather complicated due to multiplexity of their structure and functions. An adequate definition of this type of system is an involved problem. One possible way of defining an organizational system seems to be to describe it as a set of properties, as in [l]. Consequently, there arises a question of which process in the system predetermines its main properties. According to the cybernetic point of view, that is the process of managing. Thus, investigation of information processing specifity features in managing can help to find out the properties of organizational systems. On the basis of such an investigation, a definition of organizational system has been formulated [3].
The starting point of this paper is the premise that a certain unit of managing concentrating ;a11 the essential properties of an organizational system L. in be singled out and used for designing computer-based MISS. This unit can be called an "elementary cycle of *managing", its essence being informational processing, as shown in Fig. 1.
The elementary cycle consists of processes as follows.
(B Material-energetic process (F, F' ), i.e., the teclmology of material-energetics processing in both management departments, and objects of management.