3.2 Basic standards
93
Table 3.6. Comparison between the Dublin Core Metadata Element Set (Standard
ANSIINISO Z39.85) and ISO 19115 (Hudon 2002).
Dublin Core elements
Title
Creator
Subjeet
Deseription
Publisher
Contributor
Date
ISO 19115
Core metadata
eomplianee
100%
100%
50%
50%
100%
0%
50%
ISO 19115
Comprehensive metadata
eomplianee
100%
100 %
100%
100%
100%
0%
the meaning of"eredit" is elose
50%
"ereation date" ineluded,
"ereation date" ineluded
"availability date" not ineluded"availability date" not ineluded
Type
Format
Identifier
Souree
Language
Relation
Coverage
Rights
0%
33%
0%
50%
0%
67%
0%
0%
50%
50%
0%
50%
0%
100%
the eoneept is ealled
"spatialloeation"
0%
50%
3.2.9 Quality (15019113,15019114, 150/T5 19138)
The value of geographie data is direetly related to their quality. The views on
quality differ among the various user eommunities. For example, eadastral applieations require a positional aeeuraey within a few eentimetres whereas a nautieal ehart
requires a positional aeeuraey of only a few meters. Geographie datasets are being
inereasingly shared, interehanged, and used for purposes other than their produeer's
intended ones. The purpose of deseribing the quality of geographie data is to faeilitate the seleetion of the geographie dataset best suited to applieation needs or requirements. The pair of standards ISO 19113 (Quality prineiples) and ISO 19114
(Quality evaluation proeedures) define the prineiples for deseribing the quality.
Quality principles
The standards distinguish between data quality elements and data quality overview elements.
The "data quality elements" eontain quantitative quality information. The ISO
19113 defines five groups to subdivide the elements: