Spatial Data Management System.

Abstract
This fifth quarter of work on the design and implementation of a prototype Spatial Data Management System (SDMS) resulted in the addition of several new capabilities to the operational prototype. These capabilities provide: (1) a means of controlling the detail at which data is presented; and (2) additional flexibility in the appearance of graphical displays of symbolic data. In addition, a mechanism for maintaining the correspondence between symbolic and graphical forms of data was designed and will be implemented during the coming two quarters.

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