ABSTRACT
ABSTRACT: With the convergence of wireless communication, mobile positioning and GIS technologies, the demand for Location Based Services (LBS) has already appeared and prompted research in different fields. Location based applications and services deliver geo-data and real-time information to mobile users in accordance with their locations and preferences. In this paper, we present our data model of mobile object on multimodal transportation network, which extends the OGC Simple Feature specification. This model intends to improve the development of mobile applications and the location based services that deal with tracking and management of mobile objects. Then, we propose a real-time object oriented model for location based services with the RT-UML specification that adds standard real-time extensions to UML. The component based modelling with UML 2 is also introduced. A prototype system based on this architecture has been developed as mobile tourism guide system for Mohammedia City.
