Most object-oriented methodologies assign to instance models a minor role, using them to depict behavior scenarios and to show examples. For a large number of applications, among which enterprise models represent an outstanding example, traditional class-based models are not sufficient as tools. An enhanced object-oriented modeling methodology has to be devised in order to face the problems tha...

Objects relate to each other in di erent ways | serving, using, and communicating with each other. From the way in which they treat one another, objects have di erent perspectives of each other. These perspectives de ne the role that an object may play towards another. The perspectives are formed as a restricted set of methods of the object, | exactly the methods that are relevant for the relat...

This paperdescribes awayof organizing information about an object-orientedprogram’s execution. The context is our system for visualizing that execution. The critical constraints are completeness, compactness, and efficient retrieval. We describe our design and how it meets these constraints.

In this paper, we present the Adora approach to object-oriented modeling of software (Adora stands for analysis and description of requirements and architecture). The main features of Adora that distinguish it from other approaches like UML are the use of abstract objects (instead of classes) as the basis of the model, a systematic hierarchical decomposition of the modeled system and the integr...

This paper presents an object-oriented modeling approach for specifying and analyzing information systems. It supports integrated modeling of the structural aspect and the behavioral aspect of objects, and allows formal analysis of the model properties. For modeling of time/temporal constraints between object activities, the formalism includes a representation of temporal knowledge such as the ...

Although in the object-oriented paradigm objects play the central role, putting events forward is not in contradiction with current object-oriented practice. Indeed, most object-oriented methods use a state and transition-based formalism to specify behavior such as finite state machines or statecharts [1, 2, 4, 5, 6, 8]. In such formalisms the different states of an object are taken as starting...

The data model upon which most of today’s commercial database management systems are based has shown to be insufficient for geographic information systems (GISs). The recently promoted object-oriented model provides some useful tools for data abstraction and data structuring, which augment the conventional tools and overcomes some deficiencies inherent to the traditional relational model. In pa...

In our work we investigate the capability of Metaview, a meta-CASE system, to define Object-Oriented CASE environments. An innovative feature of Metaview is the use of aggregation, as a mechanism for linking method fragments. This approach is illustrated in the speciJication of our environment to support OMT one of the most popular Object-Oriented development methods.