A Survey on Service Composition Middleware in Pervasive Environments

The development of pervasive computing has put the light on a challenging problem: how to dynamically compose services in heterogeneous and highly changing environments? We propose a survey that defines the service composition as a sequence of four steps: the translation, the generation, the evaluation, and finally the execution. With this powerful and simple model we describe the major service composition middleware. Then, a classification of these service composition middleware according to pervasive requirements - interoperability, discoverability, adaptability, context awareness, QoS management, security, spontaneous management, and autonomous management - is given. The classification highlights what has been done and what remains to do to develop the service composition in pervasive environments

Perspectives for using software agents in e-Government applications

Governing a country includes a set of decentralised processes. Moreover, in the unions ofcountries with integrated economic space, the decentralisation issue gains the attention. The mostknown examples of federated governments are two of the biggest world economies: the UnitedStates of America and the European Union. The decentralisation is even more significant whenconsidering resources for businesses. Specifically the workforce, the land and the infrastructure arecommonly managed at the local or the sub-local level. The paper addresses the issues concerningcitizens’ mobility (both for personal and professional purposes) and businesses’ pan-Europeanoperations.Application of autonomous software agents to aid cross-border businesses operations andcitizens movements is addressed. The paper presents the possibility of making citizens’movements smoother and involving less paperwork. To support these ideas, the foundations andconclusions from Infocitizen initiative are introduced.In the conclusions of the paper, it is suggested that the agent-based technology for openingagents-ready virtual offices by agencies at all levels of government should be used. It wouldbenefit the users if they were allowed to set up software agents to act on their behalf and to searchall possible locations in order to find required resources. The mentioned task would be impossibleor extremely resource-consuming when done manually

Perspectives for using software agents in e-Government applications

Governing a country includes a set of decentralised processes. Moreover, in the unions ofcountries with integrated economic space, the decentralisation issue gains the attention. The mostknown examples of federated governments are two of the biggest world economies: the UnitedStates of America and the European Union. The decentralisation is even more significant whenconsidering resources for businesses. Specifically the workforce, the land and the infrastructure arecommonly managed at the local or the sub-local level. The paper addresses the issues concerningcitizens’ mobility (both for personal and professional purposes) and businesses’ pan-Europeanoperations.Application of autonomous software agents to aid cross-border businesses operations andcitizens movements is addressed. The paper presents the possibility of making citizens’movements smoother and involving less paperwork. To support these ideas, the foundations andconclusions from Infocitizen initiative are introduced.In the conclusions of the paper, it is suggested that the agent-based technology for openingagents-ready virtual offices by agencies at all levels of government should be used. It wouldbenefit the users if they were allowed to set up software agents to act on their behalf and to searchall possible locations in order to find required resources. The mentioned task would be impossibleor extremely resource-consuming when done manually

A conceptual model for semantically-based e-government portals

Issues of semantic interoperability and service integration for e-government portals are the domain of interest of the present paper. We propose a Conceptual Model for One-Stop e-Government Portals based on the Semantic Web Service technology. We describe our research into building the three basic ontologies and their integration with standard ontologies. The result is a project-independent reusable model. At the same time, we outline a simple methodology for applying the proposed conceptual model into a specific scenario