This paper presents an approach to model and to implement mobile agents. This approach is materialized by a UML profile, called MA-UML for modeling mobile agents, and a software development environment that assists the specification, design and implementation stages of the agent system development lifecycle, called MAMT. The MAMT environment provides support for modeling multi-agent systems by ...

In this paper, we discuss the design issues of an ultra wide band (UWB) receiver targeting a single-chip CMOS implementation for low data-rate applications like ad hoc wireless sensor networks. A non-coherent transmittedreference (TR) receiver is chosen because of its small complexity compared to other architectures. After a brief recapitulation of the UWB fundamentals and a short discussion on...

Security Requirements Engineering is emerging spurred by the realization that security must be dealt from the early phases of the system development process. Modeling languages in this field are challenging as they must provide concepts appropriate in order to talk about security within an organization. In previous work we introduced the SI* modeling language tailored to capture security aspect...

Refactoring is a corner stone in a number of agile processes like Extreme Programming (XP). Tools for an automatic support are beginning to appear, usually referred to as refactoring browsers. Most of these are extensions to editors or IDEs and operate on code. This paper discusses how the idea of refactoring can be extended to UML models and presents a refactoring browser integrated in a UMLmo...

The paper examines international elderly migration (IEM) related to Hungary. Little effort has been made to investigate this increasingly important element of human migration in Central and Eastern Europe. The general objective of this study is to contribute to filling this gap. IEM is investigated using register-based data on migration flows, stocks and citizenship statistics. The analysis foc...

Superior performance of industrial robots can only be achieved if the interaction of mechanics, electronics and software is taken into account already in the design phase. Conventional approaches to modelling, however, cannot cope with such multi-physics systems. The new Modelica modelling language has been specifically developed for this purpose. It also significantly increases re-usability of...

The Object Oriented Analysis and Design Methodologies (OOADMs) have been developed for many years and with the emergence of Unified Modelling Language (UML) they are now becoming a matured standard for computer systems development. Advanced tools supporting integrated analysis, designing and development of computer systems are appearing in parallel. Most of them allow easy integration with Grap...

An important obstacle to the wide-spread adoption of modeldriven development approaches in industry is the lack of proper debugging facilities. Software debugging support is provided by a combination of language and Integrated Development Environment (IDE) features which enable the monitoring and altering of a running program’s state. In Domain-Specific Modelling (DSM), debugging activities hav...