Maxim G. Shishaev

Abstract

The paper examines a problem of construction of logic model of information networks (IN). The model is aimed at creating non-homogeneous enterprise-wide networks easily and effectively.
Two approach to building such models are examined. Shorts of these approaches are noted and compromise adaptive technique of synthesis of IN is proposed. Necessity of adequate model for this technique is concluded and a new logic model of IN is proposed.
The logic model comprises compositional model and model of structure. Compositional model is defined as decomposition of Information System object. Substantiation of such decomposition has been proposed. According to decomposition five basic object classes are defined.
Model of structure defines four layers of interoperations among IN stations and three basic types of object's relationships.
Two stages technique of model analysis is proposed. The first stage is reflexing user's layer of abstraction and based on analysis of system's goal. Decomposition of the global system's goal is perfomed and finished by reaching of layer of some elementary goals that can be achieved by using ordinary services.
On the second stage IN is examined at system layer of abstraction. A possibility of data communication among servers and clients is analyzed. This analisis is founded on basic relationships among objects.
The offered model, having small dimension and sufficient completeness, can form the basis for development of practically aplicable techniques of building of heterogeneous information networks.