XVIIIth Congress: XVIIIth Congress

Kraus, Karl; Waldhäusl, Peter

Bibliographic data

Multivolume work

Persistent identifier:: 1667435949

Title:: XVIIIth Congress

Sub title:: Vienna, Austria 1996

Year of publication:: 1996

Place of publication:: Vienna

Publisher of the original:: Austrian Society of Surveying and Geoinformation

Identifier (digital):: 1667435949

Language:: English

Editor:: Kraus, Karl; Waldhäusl, Peter

Corporations:: International Society for Photogrammetry and Remote Sensing, Congress, 18., 1996, Wien; International Society for Photogrammetry and Remote Sensing

Adapter:: International Society for Photogrammetry and Remote Sensing, Congress, 18., 1996, Wien; International Society for Photogrammetry and Remote Sensing

Founder of work:: International Society for Photogrammetry and Remote Sensing, Congress, 18., 1996, Wien; International Society for Photogrammetry and Remote Sensing

Other corporate:: International Society for Photogrammetry and Remote Sensing, Congress, 18., 1996, Wien; International Society for Photogrammetry and Remote Sensing

Document type:: Multivolume work

Volume

Persistent identifier:: 1667438379

Title:: XVIIIth Congress

Scope:: 449 Seiten

Year of publication:: 1996

Place of publication:: Vienna

Publisher of the original:: Austrian Society of Surveying and Geoinformation

Identifier (digital):: 1667438379

Illustration:: Illustrationen, Diagramme

Signature of the source:: ZS 312(31,B2)

Language:: English

Additional Notes:: Erscheinungsdatum des Originals ist anhand des Copyrightjahrs ermittelt.

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

Editor:: Kraus, Karl; Waldhäusl, Peter

Corporations:: International Society for Photogrammetry and Remote Sensing, Congress, 18., 1996, Wien; International Society for Photogrammetry and Remote Sensing; International Society for Photogrammetry and Remote Sensing, Commission Instrumentation for Data Reduction and Analysis

Adapter:: International Society for Photogrammetry and Remote Sensing, Congress, 18., 1996, Wien; International Society for Photogrammetry and Remote Sensing; International Society for Photogrammetry and Remote Sensing, Commission Instrumentation for Data Reduction and Analysis

Founder of work:: International Society for Photogrammetry and Remote Sensing, Congress, 18., 1996, Wien; International Society for Photogrammetry and Remote Sensing; International Society for Photogrammetry and Remote Sensing, Commission Instrumentation for Data Reduction and Analysis

Other corporate:: International Society for Photogrammetry and Remote Sensing, Congress, 18., 1996, Wien; International Society for Photogrammetry and Remote Sensing; International Society for Photogrammetry and Remote Sensing, Commission Instrumentation for Data Reduction and Analysis

Publisher of the digital copy:: Technische Informationsbibliothek Hannover

Place of publication of the digital copy:: Hannover

Year of publication of the original:: 2019

Document type:: Volume

Collection:: Earth sciences

Chapter

Title:: METADATA REQUIREMENT FOR GIS: A CANADIAN EXPERIENCE Gordon Plunkett

Document type:: Multivolume work

Structure type:: Chapter

METADATA REQUIREMENT FOR GIS: A CANADIAN EXPERIENCE gc C Gordon Plunkett = GeoAccess Division, Geomatics Canada, Natural Resources Canada (n 615 Booth Street, Ottawa, Ontario, KIA OE9 th Ph: (613) 992-0389; Fx: (613) 952-0916 Tc E-Mail: gordon.plunkett(? geocan.nrcan.gc.ca an C Commission II, Working Group 3 & Ge KEYWORDS: GIS, Database, Standards, Archiving, Organization. Tt go ABSTRACT: an During the development of Geographic Information Systems (GIS) projects, there is usually a requirement to perform data exchanges between different agencies or at least between different systems. Various distinct kinds of data are required by ca most GIS application projects in order to complete the project successfully. With the growth in the use of GIS and in the ini voracious data needs of GIS systems, there is a great requirement for common and consistent descriptions of the diversified su kinds of data that can be used in GIS. Information describing data is often called metadata or data about data. Because of (a the diverse nature and multiplicity of data formats and standards, a need for some type of metadata standardization is nu required. Within Canada, a working group of the Canadian General Standards Board has developed a standard that can be de used for the description of various digital georeferenced data sets. This metadata once collected can be used for the creation of data set directories, which can in turn be used by users for locating the various data sets required by their In! application. This paper describes the new Canadian metadata standard and several methods that are being used for the av. dissemination and maintenance of this metadata. Some of this work is being performed by the GeoAccess Division of an Geomatics Canada under the auspices of the Inter-Agency Committee on Geomatics (IACG) within the Canadian federal du government. The paper describes earlier work performed by Roger Tomlinson for the IACG, including both the data wa collection phase and the data distribution phase. Also the new Canadian standard for the collection of data describing nk digital georeferenced data sets is documented. rel material regarding the data set. The metadata standard should i 1. INTRODUCTION contain sufficient information for a researcher or manager to eni GIS application project managers will generally spend over decide if they are interested in obtaining more information on gd the data set or perhaps the data set itself. va half of their project resources on data related issues. During the development of GIS projects, data related issues such as inf data location, data conversion and data storage can become In the past, metadata was collected and then a directory was de messy and expensive tasks. Most GIS projects require various constructed that would allow users to peruse the catalog for thr different kinds of data in order to complete the project information regarding their requirements. This previous work successfully. The following list outlines many of the most in data directories led to the development of data schemas in common types of data required for typical GIS application commercial DBMS for storage of the metadata. The metadata projects. was then provided to users on diskette in this commercial : format which the user would then load into his own DBMS or Th + Base cartographic data (most often derived from se directly. Users could then perform searches, produce De topographic maps) with good spatial accuracy; reports, locate specific data set etc. : : ; : CG e Thematic data that is derived or conceived from human 19 interpretation; : Wil ors ; : p t ; : ; This method of data distribution was adequate at the time, but be e Spatial statistical data that is derived mathematically : : n : it suffered from several problems in the data revision area. The dat from some type of data collection or census; : ; A ar ; : problem included the fact that users who received a diskette sta e Remote Sensing imagery data that is or can easily be ; : : ; s were not automatically sent a revised diskette because it was pri geocoded to the base cartographic data; and : : ; d « "Other kinds or data that Ts collected or vortravet ira GIs an expensive task to deliver updated diskettes to all the users. at P y ! In addition, it was difficult for the data producing agencies to update their data easily and this needed to be done at a central The Project managers must often decide on whether to purchase or obtain data sets without ever seeing the data set. This means that a clear concise description of the data set must be available for the manager to make his decision. A standard for depicting this type of information describing digital georeferenced data sets should contain fields for the identification of the data set; contact persons; a description of the data set; a description of the coverage (including spatial, vertical and time); data revision; data set size; data collection details; data quality; the availability of the data set; the medias available; the structure of the data set and any reference 310 site. So the result was a good metadata product, but it was difficult to maintain and disseminate. However, the solution to many of these problems is to develop a capability using the Internet to allow users to perform both data search and update functions. 2. INTER-AGENCY COMMITTEE ON GEOMATICS The Inter-Agency Committee on Geomatics (IACG) was formed in 1988 from members of various Canadian federal International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B2. Vienna 1996

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