Study on geographical information services

摘要

The concept of GIS has experienced continues changes, from Geographical Information System (GISystem) to Geographical Information Science (GIScience), and then the development of Geographical Information Services (GIServices).. Now, the concept of Geographical Information Services, which is in vigorously development, is the main stream of GIS development and the characteristics of the times. This paper expounds the GIS inevitable development trend from the Geographical Information System to Geographical Information Services, discusses service and research targets, methods and techniques, introduces a lot of successful applications of geographical information services research to the business and public daily life, furthermore, aggregates the existing problems in current geographical information services, and puts forward the suggestions and countermeasures to promote the quality of services and development of services.