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Simple Features for protobuf and others

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Filed Under: 52°North, Communities, Geoprocessing, GSoC, Sensor Web Tagged With: , , , , , ,

The Simple Feature Access Specification is a common standard that is widely used in geoinformatics for exchanging spatial features. It defines a common storage and access model for spatial vector geometries used by geographic information systems. Efficient serialization of this spatial data is a vital requirement in Spatial Data Infrastructures and Geoprocessing applications.more >

Caching for Sensor Web REST-API

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Filed Under: 52°North, GSoC, Sensor Web Tagged With: , , , , , ,

There are only two hard things in Computer Science: cache invalidation and naming things.

Phil Karlton

Caching is a common technique to improve the response time of a data source. A cache is a temporary storage for a most often acquired data. Caching is widely used in a proxying software such as Squid. The caching of network responses can provide a huge improvement to the response time. The latency of a network resource is much more greater than of a memory or a disk resource [Fig.1]. That’s why the caching is a “must-have” feature of network proxies.

Fig.1 Comparison of a memory and network latency

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