Models of resources are required in many simulations. We propose a general model in which resources are represented as active and engaging. Equal consideration is given to client and server, as they negotiate and exercise contracts with one another. A registry facilitates the discovery of resources. This model is presented using the Unified Modeling Language (UML).

Today’s software systems are developed and targeted for satisfying sometimes very critical functions. Reliability is considered to be one of the most important nonfunctional quality attribute of such software systems. The aim of reliability estimation in early stages of software development process – analysis and design – should reduce the future costs for possible failure repairing through inc...

This paper presents the uses of Unified Modeling language (UML) for describing cadastral information systems in terms of functional, static and dynamic models. These models enhance the transparency of the national cadastral organization by visualizing its business in the forms of UML diagrams and notations.

in recent decades, the simultaneous design of a product and its supply chain has become a trend in the manufacturing industry. This approach, requiring massive data sharing, allows different designers to collaborate in order to choose the best product design along with its corresponding supply chain, taking into account cost, quality, and time. To get a successful collaboration between designer...

Conceptual models communicate the important aspects of a problem domain to stakeholders. The quality of the models is highly dependent on the usability of the modeling method used. This paper presents a survey conducted on a method that integrates the use of a semiformal notation, namely the Unified Modeling Language (UML) and a formal notation, namely B. The survey assessed the usability of th...

Scenario languages are widely used in software development. Typical usage scenarios, forbidden behaviors, test cases and many more aspects can be depicted with graphical scenarios. Scenario languages were introduced into the Unified Modeling Language (UML) under the name of Sequence Diagrams. The 2.0 version of UML changed Sequence Diagrams significantly, the expressiveness of the language was ...

E-Learning tools facilitate asynchronous (e.g., wiki) and synchronous (e.g., video-conferencing) learning. They may provide a cost effective way to train large numbers of people in global settings to leverage complex technologies such as Unified Modeling Language (UML) tools. Few industrial experiences from the use of e-Learning tools to train complex technologies have been reported. It is uncl...

In this paper, we deal with the problem of storing and retrieving dialectal data in a unified framework. In particular, we discuss issues concerning the design and implementation of a multimedia database which will contain written and oral data from three Greek dialects in Asia Minor. At first, we describe the overall architecture of a system aiming at providing the user with the possibility to...

We develop a new model for fuzzy decision making based on the use of several sources of information in the analysis. We introduce the fuzzy unified aggregation operator (FUAO). It is an aggregation operator that unifies other aggregation operators in the same formulation and considering the degree of importance of each concept in the analysis. Moreover, it also deals with uncertain environments...

This contribution focuses on the behavioral modeling of the systems in the system engineering. The system engineering process is described and overview of the system modeling language (SysML) is presented. The SysML basic principles and diagrams are discussed. Practical part of the paper discusses behavioral modeling process, which is illustrated by the set of the example models. Key-Words: Sys...