In real applications, information is often imprecise and vague. Exact information has become an essential part of modern database applications for making next generation information systems more human friendly. Fuzzy techniques have been widely used to represent such vague information in various database models and theories. Because of the efficiency of object oriented databases in handling com...

Although the traditional entity relationship approach is still the most widely applied technique for modeling database applications, object-oriented approaches and fact-oriented approaches are being increasingly used for data modeling in general. The most popular exemplars of the latter two approaches are respectively the Unified Modeling Language (UML) and Object-Role Modeling (ORM). An initia...

Robots operating in a constructed facility must possess knowledge about and a description of their environment . This information is organized into a domain model . This paper presents current work investigating issues in developing domain models of constructed facilities for robotic applications using an object-oriented approach . Requirements regarding model contents and functionality are ide...

Experiences of both researchers and practitioners with the development of object-oriented database systems help us to evaluate the real contributions of object-oriented modeling principles and show the limits and possibilities of improvements of the object-oriented model. One of the research areas where such a need was recognized concerns the class membership. In most object-oriented data model...

Most of contemporary software systems are implemented using an object-oriented approach. Modeling phases – during which software engineers analyze requirements to the future system using some modeling language – are an important part of the development process, since modeling errors are often hard to recognize and correct. In this paper we present a framework which allows the integration of Ans...