Accession Number : ADA265144


Title :   Interim Tile Design Study for the Digital Chart of the World


Descriptive Note : Interim study rept. Jan-Jul 1990


Corporate Author : ENVIRONMENTAL SYSTEMS RESEARCH INST INC REDLANDS CA CENT


Personal Author(s) : Martin, Lynn


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a265144.pdf


Report Date : 02 Jul 1990


Pagination or Media Count : 22


Abstract : This study reviews investigation for the partitioning of large spatial databases undertaken in the development of the Defense Mapping Agency's new vector product the Digital Chart of the world (DCW). The DCW is a geo- spatial, topologically structured, global database designed for the use in Geographic Information Systems (GIS). The study covers the characteristics of tiling, or partitioning, of large digital geo-spatial databases to improve data storage, access, and use. It identifies tiling requirements and goals for the DCW and summarizes project experience. It is the first of two reports performed under DCW development effort. The second is the Final Tile Design Study for the Digital Chart of the World, November 1990.


Descriptors :   *DATA BASES , *DIGITAL MAPS , GLOBAL , INFORMATION EXCHANGE , TILES , STANDARDS , SYSTEMS ANALYSIS


Subject Categories : Cartography and Aerial Photography
      Computer Systems


Distribution Statement : APPROVED FOR PUBLIC RELEASE