Interoperable and Distributed Processing in GIS
This text shows how the principles and technologies of object-oriented programming, distributed processing and internet protocols can be embraced to further the reliability and interoperability of datasets for the professional GIS market. The book describes the central concept of the interface specification between the data consumer and producer - the Virtual Data Set VDS. It then examines how VDS deals with two other classes of model - field representations and modelling uncertainty. The final part of the book looks at implementation, describing how the VDS interacts with PostScript, Java, and Object-oriented modelling environments.
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allows application approach basic Berkeley sockets Buehler & McKee byte code called chapter client complexity component DBS computing concepts Consider for example context continuous fields CORBA data definition language data formats data integration data migration data model data producer data types data user database dataset defined discussed document Document Structuring Conventions domain dynamic encoding environment essential model flexibility function fuzzy set geometry geoprocessing histogram implementation important information communities interface Internet interoperability interpolation interpreter interval issues Java mapping mathematical means measurement metadata methods needs object user object-oriented OGIS operating system output parameters physical quantities platform possible POSTSCRIPT program printer probability theory problems programming language protocol random variable representation runtime sampling schema semantic heterogeneities server showpage simple simplicial complexes SomeClass SomeInterface spatial data spatial references specification standard TCP/IP techniques theory translator typically uncertainty various vendors