ITHEA IJ and IBS Sample Sheet 2014 1 OBJECT-ORIENTED DYNAMIC NETWORKS Dmytro Terletskyi, Alexandr Provotar Abstract: This paper contains description of such knowledge representation model as Object-Oriented Dynamic Network (OODN), which gives us an opportunity to represent knowledge, which can be modified in time, to build new relations between objects and classes of objects and to represent results of their modifications. The model is based on representation of objects via their properties and methods. It gives us a possibility to classify the objects and, in a sense, to build hierarchy of their types. Furthermore, it enables to represent relation of modification between concepts, to build new classes of objects based on existing classes and to create sets and multisets of concepts. OODN can be represented as a connected and directed graph, where nodes are concepts and edges are relations between them. Using such model of knowledge representation, we can consider modifications of knowledge and movement through the graph of network as a process of logical reasoning or finding the right solutions or creativity, etc. The proposed approach gives us an opportunity to model some aspects of human knowledge system and main mechanisms of human thought, in particular getting a new experience and knowledge. Keywords: class of objects, inhomogeneous class of objects, sets of objects. ACM Classification Keywords: E.2 Data Storage Representations — Object representation, D.3.3 Language Constructs and Features — Abstract data types, Classes and objects, Data types and structures, D.1.5 Object- oriented Programming, F.4.1 Mathematical Logic — Set theory. Conference topic: Knowledge-Based Systems, Knowledge Representation and Management. Introduction Modern AI includes many directions, which differ from each other, but at the same time they have something in common. One of the main targets for researchers of all these directions is the development of intelligent information systems (IIS) for solving particular practical problems in corresponding areas. Nowadays, development of IIS is often reduced to heuristic programming. Nevertheless, there is a variety of IIS, which are based on knowledge representation model (KRM). The most famous and common are Semantic Nets, Conceptual Dependency, Frames, Scripts, Logical and Production Models, Ontologies, etc. Each of these models has own specifics and is useful in the particular domain. However, we need to implement a KRM while developing certain IIS. That is why our IIS is going to have at least two levels: the level of KR model and the level of its practical implementation. Sometimes, implementation of certain KRM can cause additional problems and difficulties, which are connected with interaction between two abstraction levels of IIS. This situation led to the development of logical programing and such programming language as Prolog, where KRM is integrated within the language. Such approach gives us an opportunity to represent knowledge using just programming language, because corresponding KRM is integrated within it. Clearly, the development of software for solving particular tasks, management by some process, etc. is easier than the development of software, which has some level of individuality and intellectuality and can do more complicated tasks than just some computations. That is why questions about useful and powerful tool for such development appear. Modern programming includes many different paradigms, approaches, techniques and