Proceedings of the Symposium on Global and Environmental Monitoring: Proceedings of the Symposium on Global and Environmental Monitoring

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Persistent identifier:: 856665355

Title:: Proceedings of the Symposium on Global and Environmental Monitoring

Sub title:: techniques and impacts ; September 17 - 21, 1990, Victoria Conference Centre, Victoria, British Columbia, Canada

Year of publication:: 1990

Place of publication:: Victoria, BC

Publisher of the original:: [Verlag nicht ermittelbar]

Identifier (digital):: 856665355

Language:: English

Document type:: Multivolume work

Volume

Persistent identifier:: 856669164

Title:: Proceedings of the Symposium on Global and Environmental Monitoring

Sub title:: techniques and impacts; September 17 - 21, 1990, Victoria Conference Centre, Victoria, British Columbia, Canada

Scope:: XIV, 912 Seiten

Year of publication:: 1990

Place of publication:: Victoria, BC

Publisher of the original:: [Verlag nicht ermittelbar]

Identifier (digital):: 856669164

Illustration:: Illustrationen, Diagramme, Karten

Signature of the source:: ZS 312(28,7,1)

Language:: English

Usage licence:: Attribution 4.0 International (CC BY 4.0)

Editor:: International Society for Photogrammetry and Remote Sensing, Commission of Photographic and Remote Sensing Data

Publisher of the digital copy:: Technische Informationsbibliothek Hannover

Place of publication of the digital copy:: Hannover

Year of publication of the original:: 2016

Document type:: Volume

Collection:: Earth sciences

Chapter

Title:: [THP-2 GIS INTEGRATION]

Document type:: Multivolume work

Structure type:: Chapter

Chapter

Title:: IMPLEMENTING THE SPATIAL DATA TRANSFER STANDARD. Hedy J. Rossmeissl and Karen A. Irby

Document type:: Multivolume work

Structure type:: Chapter

Status The standard was tested in two phases between January 1988 and April 1989. The pur pose of Phase 1 testing was to test the conceptual framework and implementation of the SDTS, and prove that data could be encoded and decoded into and out of the Standard. Phase 1 testing involved organizations from the Federal government that had been closely associated with the development of the SDTS: the U.S. Geological Survey, the Bureau of the Census, and the Defense Mapping Agency. Each of these organizations completed test data sets. The U.S. Geological Survey encoded a Digital Line Graph file, the Bureau of the Census, a TIGER file, and the Defense Mapping Agency, a World Vector Shoreline file. These files were exchanged and decoded by each participating agency. Errors and suggested improvements resulting from this exercise were documented and presented to the Technical Review Board. The board reviewed and voted to accept 14 of 17 proposed changes. These changes were incorporated in the standard and a revised version, "The Proposed Standard for Digital Cartographic Data" (DCDS Task Force, 1988), was prepared for the phase 2 testing period. Phase 2 testing began in September 1988. The purpose of this second testing phase was to open up participation in this activity to include other Federal agencies, the private sector, and the university community. Three workshops were held to initiate participants in the background, purpose, goals, and content of the standard. Over 60 individuals from more than 20 private firms, government agencies, and universities attended. Participants were presented with several options for testing the concepts presented in the standard ranging from completing a paper and pencil conceptual mapping between one data format and SDTS to completing a full transfer of data between two organizations. Testers were re quired to document and report their findings. As a result of this testing, 124 suggestions were submitted to the Technical Review Board. Participants expressed major concerns about the amount of complexity and optionality contained in the standard and offered suggestions to clarify specific points. The Technical Review Board met in May 1989 to consider the issues raised as a result of phase 2 testing. At this meeting discussions were held on terminology, data models, data transfer forms (vector, relational, and raster), map annotation, symbology, and ISO 8211 as the transfer implementation method. Highlights of the changes proposed at this meeting include: • Change the official name of the standard from the "Digital Cartographic Data Standard" to the "Spatial Data Transfer Standard." • Establish a working group to define a conceptual model of spatial data that reflects what is described in the standard and to develop a more complete description of terminology, including standard objects and their relationships. • Establish a working group to consolidate the vector and relational form. Relocate modules of the relational form associated with attributes into the vector form. Delete the hierarchical method used to code attributes within the vector form and all modules in the relational form not associated with attribution. 628

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