BUILDING A CONTEXT-AWARE MOBILE TOURIST GUIDE SYSTEM BASE ON A SERVICE ORIENTED ARCHITECTURE

The term of context in mobile computing area especially in the spatio-temporal applications introduces a rich source of information, yet it has less been regarded and modelled in the related fields. Since a tourist may be considered as a moving object in an environment with variable contexts, therefore tourist guide applications and services is taken into account as an application area for the context-aware systems. To implement such a dynamic service-based applications, in this paper, we propose a framework for personal tourist guide (PTG) system based on service oriented architecture (SOA). In our proposed framework, PTG send a request based on the context of user to a catalogue. Service brokers collaborate to find the right services and then, PTG and service provider negotiate as to format of the request and some other protocol issues. At the last step, tourist may utilize the provided services. To evaluate this framework, a simple case study was developed. The results show its superiority over the traditional architectures. * Corresponding author