Abstract
This paper aims to present the ZOO-Project, which is a new open source implementation of the Open Geospatial Consortium’s (OGC) Web Processing Service (WPS), released under the term of the MIT/X-11 license. Based on a server-side C language Kernel (named ZOO-Kernel), ZOO-Project proposes a new approach to develop, handle and chain standardized GIS-based Web services. A brief review of WPS and existing implementations will be given in order to detail the ZOO-Project development background and goals. Then, the ZOO itself will be presented, focusing on its advantages and limitations, foremost to highlight the new opportunities provided by such a platform. The ZOO-Kernel and its architecture will be first examined, before further explanations on the proposed method for Web services creation are given. Then the ZOO JavaScript API that provides a new way to orchestrate and chain Web services through the server-side JavaScript will be presented next. Both Kernel and API are illustrated and documented through different Web service code snippets that are available online. Some visual examples of client-side interactions are presented.
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Acknowledgments
The authors thank Fank Warmerdam for developing and maintaining GDAL/OGR. Thanks also to Soeren Gebbert and Markus Neteler for their active support in the GRASS GIS integration into the ZOO-Project.
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Fenoy, G., Bozon, N. & Raghavan, V. ZOO-Project: the open WPS platform. Appl Geomat 5, 19–24 (2013). https://doi.org/10.1007/s12518-011-0070-0
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DOI: https://doi.org/10.1007/s12518-011-0070-0