Towards Dynamic Web Service Generation on Demand

2006 ◽  
Author(s):  
Ivan Magdalenic ◽  
Boris Vrdoljak ◽  
Zoran Skocir
Keyword(s):  
Web Service ◽  
On Demand ◽  
Dynamic Web

scholarly journals Context aware benchmarking and tuning of a TByte-scale air quality database and web service

2021 ◽  
Author(s):  
Clara Betancourt ◽  
Björn Hagemeier ◽  
Sabine Schröder ◽  
Martin G. Schultz
Keyword(s):  
Air Quality ◽  
Web Service ◽  
Statistical Processing ◽  
Quality Metrics ◽  
Context Aware ◽  
Near Surface ◽  
On Demand ◽  
Air Quality Measurements ◽  
Present Context ◽  
And Performance

AbstractWe present context-aware benchmarking and performance engineering of a mature TByte-scale air quality database system which was created by the Tropospheric Ozone Assessment Report (TOAR) and contains one of the world’s largest collections of near-surface air quality measurements. A special feature of our data service https://join.fz-juelich.de is on-demand processing of several air quality metrics directly from the TOAR database. As a service that is used by more than 350 users of the international air quality research community, our web service must be easily accessible and functionally flexible, while delivering good performance. The current on-demand calculations of air quality metrics outside the database together with the necessary transfer of large volume raw data are identified as the major performance bottleneck. In this study, we therefore explore and benchmark in-database approaches for the statistical processing, which results in performance enhancements of up to 32%.

Operational Delivery of Customized Earth Observation Data Using Web Coverage Service

2011 ◽  
pp. 385-400
Author(s):  
Wenli Yang
Keyword(s):  
Web Service ◽  
Earth Observation ◽  
Observation Data ◽  
Data Systems ◽  
On Demand ◽  
Promising Solution ◽  
Open Geospatial Consortium ◽  
Earth Observation Data ◽  
Operational Data

Global long term Earth Observation (EO) provides valuable information about the land, ocean, and atmosphere of the Earth. EO data are often archived in specialized data systems managed by the data collector’s system. For the data to be fully utilized, one of the most important aspects is to adopt technologies that will enable users to easily find and obtain needed data in a form that can be readily used with little or no manipulation. Many efforts have been made in this direction but few, if any, data providers can deliver on-demand and operational data to users in customized form. Geospatial Web Service has been considered a promising solution to this problem. This chapter discusses the potential for operational and scalable delivery of on-demand personalized EO data using the interoperable Web Coverage Service (WCS) developed by the Open Geospatial Consortium (OGC).

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