Metadata Standards

  • Syntax

    • Directory Structure
    • Size, Format, Location, URL
  • Semantics

    • Usage Convention (e.g., FITS)
    • Extensible Standards to Encompass Different Disciplines (DTD, XML)
    • Astronomical Nomenclature and Designation
  • Conceptual Data Model

  • Metadata Language or Representation

    • FITS, ASCII, IEEE Binary
    • Astronomical XML

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