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1999
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Process Networks as a High-Level Notation for Metacomputing

4 years 3 months ago
Process Networks as a High-Level Notation for Metacomputing
Abstract. Our work involves the development of a prototype Geographical Information System GIS as an example of the use of process networks as a well-de ned high-level semantic model for the composition of GIS operations. Our Java-based implementation of this prototype is known as PAGIS Process network Architecture for GIS. Our process networks consist of a set of nodes and edges connecting those nodes assembled as a Directed Acyclic Graph DAG. In our prototype, nodes represent services and edges represent the ow of data in this case sub-processed imagery between services. Services are pre-de ned operations that can be performed on imagery, presently selected from the Generic Mapping Tools GMT library. In order to control the start and end-point of the DAG, we de ne an input node the original image and an output node the result image. To exploit potential parallelism, we extend our idea of a process network to a distributed process network, where each service may be processed on di ere...
Darren Webb, Andrew L. Wendelborn, Kevin Maciunas
Added 03 Aug 2010
Updated 03 Aug 2010
Type Conference
Year 1999
Where IPPS
Authors Darren Webb, Andrew L. Wendelborn, Kevin Maciunas
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