Abstract: The research object is the project of the system of information security of an information system, which includes the development of the model of threats, and the related issues of the current state of an information system assessment and recommendations about the improvement of information protection. The paper considers the approach to the construction of the model of threats based on the use of the object-oriented design model. Such approach involves active use of UML-diagrams when describing the conceptual model of threats to information security, the ways of these threats realization, and threats realization and protection scenarios. Within this approach, using the UML language and Enterprise Architect tool, the author develops and describes the object-oriented model of threats to information security for a distributed information system. This model can be embedded into the documents of information security of an information system. The developed models of threats and scenarios will help information analysts and information security specialists to interact more effectively to protect information systems against information security threats. 

Abstract: The object of research is a module for accounting of supplied goods, which is part of the automated information system. The author presents a project for module implementation. The project contains a technical description of functions and features of the software implementation of accounting of supplied goods as well as the objects included in this software. The given model gives a clear view of the automated information system components that must be deployed for accounting of supplied goods using FIFO or LIFO methods. The model shows algorithms for the implementation of operations of incoming, expenditure and cancellation of the goods. The model is constructed using the CASE-tools in UML 2.1 notation and includes a data chart, use case diagram, and other diagrams, which describe the details of behavior, implementing and deploying the module. The used approach to automating the accounting of supplied goods is based on including a certain degree of redundancy in the logical database model, which allows using a more convenient mechanism of registration of supply and consumption of goods and raw materials. The proposed model provides a software client-server implementation of the different options: using a thin and thick client with a dedicated business logic layer.