원문정보
초록
영어
By introducing Web Services, distributed GIS(Geospatial Information System) services
from different vendors can be dynamically integrated into a GIS application using the
interoperable standard SOAP(Simple Object Access Protocol). However, it is debatable
whether SOAP can really meet the performance requirement of GIS. Additionally, GIS Web
Services’ performance may be improved by using asynchronous technique. Ajax, one of the
technologies of “Web 2.0”. Integrating Ajax(Asynchronous JavaScript and XML) approach
into GIS visualization Web Services have performance enhancement, because it provides
more interactive user experience. This paper presents an experimental evaluation of the
performance of different SOAP variants: standard SOAP, SwA/MIME, and SOAP/MTOM.
SOAP/MTOM is proved to be the fastest and the most efficient messaging protocol. For
sintegrating Ajax approach, compare performance of models between Web Services and Web
Services using Ajax. This comparison results that Web Services using Ajax represent good
performance in images fetching and user roundtrip time because it fetches required images
beforehand.
목차
1. Introduction
2. Background
2.1 OGC GIS web services
2.2 SOAP and It’s variants
2.3 Ajax (Asynchronous JavaScript and XML)
3. Related works
4. A performance evaluation of SOAP variants for GIS web services
4.1 Metrics and methods
4.2 Environments
4.3 Test data design
4.4 Results
5. Integrating Ajax into GIS Web Services
5.1 Classical web services
5.2 Integrating web services with Ajax
6. Performance Evaluation
6.1 Metrics and Methods
6.2 Environments and test data design
6.3 Results
7. Conclusion
8. References