MDA (Model-Driven Architecture) has been coined by OMG (Object Management Group) as the next step in application integration. Being based on standards already embraced by a large segment of the software engineering industry, MDA promises fully automatic model transformation. MDA enables application developers to use formalisms such as UML to specify their applications in a totally platform-inde...

An evolutionary model drawn from biology is introduced. A method for its application to optimisation problems is developed and applied to the analysis of Videotex and Teletext services. It is shown that the evolutionary model has significant potential as a diagnostic tool for identifying trends in complex competitive systems.

This paper presents a framework that supports the design of multimedia telecommunication service. This framework follows the component-oriented paradigm. The compositional units are components, which are controlled by connectors that abstract interaction patterns. We define a Component Base that stores components and connectors for specific multimedia services. These components and connectors m...

A modern telecommunication service is portrayed as a complex system and is characterized by its stochastical attributes and fuzzy performance considerations. Asynchronous transfer mode (ATM) telecommunication is studied as an example of such a complex system. A call admission control (CAC) procedure is developed using a fuzzy inference method applied to the complex connection patterns of ATM se...

Aeronautical Telecommunication Network (ATN) has been developed by the International Civil Aviation Organization to integrate Air-Ground and Ground-Ground data communication for aeronautical applications into a single network serving Air TraÆc Control and Aeronautical Operational Communications. To carry time critical information required for aeronautical applications, ATN provides di erent Qua...

The purpose of this paper is to describe a research undertaken to develop a conceptual framework of telephotogrammetry based on concepts such as telegeoprocessing, mobile photogrammetry, geomobility and web services. In order to be operational, telephotogrammetry requires a combination of four different facilities: imaging, positioning, networking and computing. It consists of a hand-held mobil...