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Terms and definitions

General

Every OGC standard requires a “Terms and definitions” clause to hold terminology entries important to the standard.

The “Terms and definitions” section provides a single point of truth for terms and concepts used within this standard. Content in the “Terms and definitions” section is considered normative.

Optionally, if there are informative terminology entries, OGC allows a “Glossary” section to be set in an Annex, which only consists of informative terms.

Note
OGC has recently adopted similar practice to that of ISO with regards to the “Terms and definitions” clause.

Terminology models

Terminology entries in OGC and ISO adhere to the terminology model from the international standard for terminology representation, ISO 10241-1.

The organization of terminology entries within the section should follow the defined conceptual hierarchies specified in ISO 704.

Terminology clauses

Normative terms are to be kept in the “Terms and definitions” clause, which is always to be located at Clause 3.

Note
Legacy practice may have this clause at Clause 4, but in new publications this is not allowed.
Defining the Terms and definitions sectionadoc
== Terms and definitions
...
Defining the Glossary sectionadoc
[appendix,obligation="informative"]
[heading='terms and definitions']
== Glossary
...
Note
The initial notice in Terms and Definitions clauses ("This document uses the terms defined in OGC Policy Directive 49...") is inserted automatically by Metanorma, and you should not type it in to your document.

Entering terminology entries

There are in general three kinds of terms:

  • Terms that are newly defined in this standard;
  • Terms that are entirely sourced from another document;
  • Terms that are sourced from another document but modified within this standard.

A newly defined term:

=== milled rice
alt:[white rice] <1>
{{husked rice}} from which almost all of the bran and embryo have been removed by milling. <2>

A sourced term:

=== extraneous matter
alt:[EM]
domain:[rice] <1>
organic and inorganic components other than whole or broken kernels
[example] <2>
Foreign seeds, husks, bran, sand, dust.
[.source]
<<ISO7301,clause 3.3>> <3>

A sourced but modified term looks like this:

=== husked rice <1>
deprecated:[cargo rice] <2>
Paddy from which the husk only has been removed. <3>
[.source] <4>
<<ISO7301,clause 3.2>>, The term "cargo rice" is shown as deprecated, and Note 1
to entry is not included here

More OGC terms and definitions