1 / 9

Data Element Classification ISO/IEC 11179, Part 2

Data Element Classification ISO/IEC 11179, Part 2. Bruce Bargmeyer U.S. Environmental Protection Agency Tel: (202) 260-5306 Internet: bargmeyer.bruce@epa.gov WWW: http://sdct-sunsrv1.ncsl.nist.gov/~bargmeye. Data Elements-Fundamentals. Object Class. Property. Representation.

salome
Download Presentation

Data Element Classification ISO/IEC 11179, Part 2

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Data Element Classification ISO/IEC 11179, Part 2 Bruce Bargmeyer U.S. Environmental Protection Agency Tel: (202) 260-5306 Internet: bargmeyer.bruce@epa.gov WWW: http://sdct-sunsrv1.ncsl.nist.gov/~bargmeye

  2. Data Elements-Fundamentals Object Class Property Representation Data Element Concept Data Element Core Data Element Application Data Element

  3. Data Elements-Fundamentals Object Class Property Representation Data Element Concept Conceptual Domain Data Value Domain Data Element Core Data Element Application Data Element

  4. Classification -Fundamental Notions • What forms can classification take? • Keywords • Controlled Word lists, possibly based on models • Thesaurus • Taxonomy • Ontology • Acyclic directed graph, lattice • Multiple inheritance

  5. SC NC GA VA MD OH ………… Definition Steward Unique ID Classification Registration Authority Name and Context Maintenance Organization Others ….. Data Element Classification

  6. Classification -Fundamental Notions • Each node in a classification structure is a taxon (plural: taxa). • The taxa relating to a data element can be listed in a separate attribute of a data element • With adequate software, users could access and navigate the classification structure • A nonintelligent identifier for each taxon helps to deal with change

  7. Example Classification Scheme • Library of Congress keywords • General European Multilingual Thesaurus (GEMET) • Integrated Taxonomic Information System (ITIS) - biological • Bill Kenworthey’s taxonomy of common abstract unit nouns

  8. Utility of Data Element Classification • Help to locate one data element among many (thousands) • Help to design similar data elements in uniform manner • Help to resolve synonym and homonym problems • Provide context not possible to put into a definition • May provide definitions for words found in data element definitions and names

  9. Status • ANSI & ISO • Final Draft IS going out for JTC1 ballot • Continuing R&D • Concept is evolving • Search engines • Middleware - agents, mediators, request brokers • XML tags • Relationship to terminology management

More Related