Abstract
Abstract. This paper introduces and compares two types of GML-based data standards for indoor location-based services, i.e., IndoorGML and IndoorLocationGML. By elaborating the advantages of the both standards and their data models, we conclude that the two data standards are complementary to each other. A jointed data model is presented to show the integration of the two standards. IndoorGML can supply subdivision of building for data of IndoorLocationGML, and the semantics of locations defined in IndoorLocationGML can be added to IndoorGML. By proposing two use cases, we take the initiative in attempting to combine the use of the two standards. The first case is to collect details from files of the two standards for an indoor path; the second one is to generate verbal directions for indoor guidance from files of the two standards. Some future work is given for further development, such as automatic integration of separate data from both standards.
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