Developing location-based services from a GIS perspective

The definition and main characteristics of location-based services with emphasis on its core component - an Internet/Web geographic information systems (GIS) are presented. The iSTOMM - a framework for Internet/Web GIS application development is introduced as a collection of spatio-temporal data modeling and management tools and techniques for design and implementation of location-based services. Two prototype location-based services intended for: yellow pages and vehicle tracking and navigation are currently under development around the iSTOMM framework.