Petri net is used widely to analyze and model various systems formally. Recently, Many Petri nets mania devote their efforts to enhancing and extending the expressive Power of Petri nets. One such effort is to extend Petri nets with object-oriented concepts. An object-oriented paradigm provides excellent concepts to model real-world problems. Object-oriented concepts allow us to build software ...

This paper presents an object-oriented database model for broadband telecommuni-cation networks, which can be used both for network management and for network planning purposes. The object-oriented data model has been developed using the parallel object-oriented speciication language Maude 8,11], which allows us to de-ne not only structural aspects of the database, but also procedural aspects. ...

In this paper we extend the objecf-oriented dalabase model via the concept of object inheritance. We then define a closed and safe object-oriented query algebra. Our algebra is different from any other object-oriented query algebra found in the literature due to the extension of the model with object inheritance. The algebra defined deals with homogeneous sets of objects, and provides the model...

In this paper, based on the possibility distribution and semantic measure of fuzzy data, an extended object-oriented database model to handle imperfect as well as complex object in the real-world is introduced. Some major notions in object-oriented databases such as objects, classes, object-classes, relationships, subclass/superclass and multiple inheritances are extended under fuzzy informatio...

─This paper is to clarify ontologies in knowledge base compare with object models in object oriented software engineering. Ontology itself has the concept which is the foundation of knowledge base; on the other hand The object model is the center of object oriented software engineering. Because ontologies are closely related to modern object-oriented software design, it is natural to adapt exis...

This paper presents a novel approach for mapping an existing object-oriented database into XML and vice versa. The major motivation to carry out this study is the fact that it is necessary to facilitate platform independent exchange of the content of object oriented databases and the need to store XML in a structured database. There are more common features between the object-oriented model and...