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The development of embedded networks poses several challenges: complexity and size of the network, heterogeneity of nodes, and infrastructure dynamics. From other IT domains it is known that many of these challenges can be met by a Service Oriented Architecture (SOA). In the context of embedded networks, an application can be interpreted as a set of(More)
In the past, model-based development focused mainly on functional and structural aspects of the system to be developed. Recently, several approaches to include timing aspects have been suggested. However, these approaches are typically applied in later development phases. Models specifying the requirements with respect to timing without focusing on a(More)
Wireless sensor networks (WSNs) have drawn a lot of attention and a lot of work has been done to provide an efficient communication infrastructure for these systems. This paper focuses on another -not so well studied- class of embedded networks: embedded networks used for control and automation purposes. In contrast to WSNs, these networks have a comparably(More)
More and more devices are becoming network enabled and are integrated within one large, distributed system. The service-oriented paradigm is the predominant concept for the implementation of this approach and helps to deal with heterogeneous network infrastructures. For long term deployments, e. g., in process and building automation, installations have to(More)
About the Document Model-based development assumes the pervasive use of models along all software development phases. Models are usually built using modelling tools. Behind each tool there is a modelling language that comprises one or more specification techniques. A specification technique represents the essential ideas (archetypal view) behind a modelling(More)
The influence of food fibres and plant proteins on microorganisms, bacteriophages, antibiotics and penicillinase was studied in vitro. It was shown that pectin was the only agent that had a bactericidal effect on the most widely distributed pathogenic and opportunistic microorganisms and did not influence indigenic microflora. High concentrations of pectin(More)
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