a b s t r a c tTourism is one of the major sources of income for many countries. Therefore, providing efficient, real time service for tourists is a crucial competitive asset which needs to be enhanced using major technological advances. The current research has the objective of integrating technological innovation into an information system, in order to build a better user experience for the tourist. The principal strength of the approach is the fusion of con text aware pervasive systems, GIS systems, social networks and semantics. This paper pre sents the SPETA system, which uses knowledge of the user's current location, preferences, as well as a history of past locations, in order to provide the type of recommender services that tourists expect from a real tour guide.

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Business Process Management (BPM) is the management of IT-supported business operations from a business expert's process view rather than from a technical perspective. Recently, the application of SW technologies to BPM has gained interest in both the academic and corporate sector. The most significant issue facing BPM is the integration of BusinessProcesses in a dynamic environment with an IT system in order to adequately represent business operations and needs. In this paper, we describe how Semantic Web technologies and business processes have been combined in order to construct an architecture for Business Process Management, and we present a new framework for increasing exibility and adaptively of business processes, annotating semantic business process artifacts on all modeling levels, and advancing BPM towards knowledge-intensive processes.

Presently, not only a large amount of information resources are available on the Web, but also a complete lattice of dynamic applications, namely, software components and Web Services. Hence, an increasing demand of a proper model and architecture for composition of software components has triggered a huge amount of integration efforts. However, most of them are partially ignoring operational and knowledge-oriented aspects which can hinge on semantics. In this paper, we present a semantically enhanced framework for software composition focusing on component-based systems.

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