Testing of web map services
Horak, Jiri et al.
Network services represent a key part of INSPIRE. They shall be available to the public and accessible via the Internet. The paper proposes a way how to test and measure the availability of network view services (WMS) for end users. Map servers of two main providers of Czech spatial network services according INSPIRE (CENIA, Czech Environmental Information Agency, and COSMC, Czech Office for Surveying, Mapping and Cadastre) has been tested using performance and load testing. The testing helps to understand how the system will handle the load caused by many concurrent users. Any provider is able to test a latency of application, but for end user it is important to measure the overall latency (the response time) and also other characteristics like error occurrence, availability and performance. The results also enable to describe stress capabilities, which mean finding the breakpoint of a site/web-based application performance against the maximum user load. The response time, error occurrence, availability and performance were measured during two months of repeated access using same scenarios and different number of concurrent virtual users. Better performance and benchmarking were obtained testing of COSMC map services, where the average response time is bellow 1 s, the overall performance is stable and no stress breakpoint is detected (for the given maximum number of virtual users).
Event: GSDI 11 Spatial Data Infrastructure Convergence : Building SDI Bridges to address Global Challenges
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