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data abstraction

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(data)data abstraction - Any representation of data in which the implementation details are hidden (abstracted). Abstract data types and objects are the two primary forms of data abstraction.



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By using design data abstraction for strategic planning and the global route engine for guidance and feedback, the user can converge on a successful interconnect solution far faster and more easily than ever before.
The specific tools discussed are the Geospatial Data Abstraction Library with OGR, a collection of application programming interfaces and command-line utilities for raster and vector data; OpenEV for desktop GIS and imagery analysis; UMN MapServer, which includes command-line tools to build CGI web applications; and PostGIS, an extension to the PostgreSQL database management system that allows the user to store and manipulate spatial data alongside tabular data.
Rather than attempting to sort concepts into conventional chapters, Dewhurst has come up with an innovative way to present his material in a list of over 60 "items" specific to individual issues or functions such as data abstraction, polymorphism, new cast operators, copy operators, when pointers are not really pointers, STL function objects, capability queries, array allocation, and templates of various stripes.
 
 
 
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