2.2ISO/TC211
37
ISO 19114. It rnight report values of the "data quality elements" in the following
way:
• Completeness: 100% coverage
• Logical consistency: no errors found
• Positional accuracy: ± 5m
• Temporal accuracy: last map revision 3 years ago, community information supplied last spring
• Thematic accuracy: topographie base map does not supply shelters and other
similar elements for tourist purposes
It might also report values ofthe "data quality overview elements", including:
• Purpose: tourism-GIS will enable an online information source of tourist details
and it will also promote tourism in the area
• Usage: dataset was assembled for the tourism-GIS
• Lineage: dataset was created under the supervision of the "Tourism-GISAssociation"
The ISO 19114 (Quality evaluation procedures) provides advice on different levels of detail for the quality check. For example, a "direct evaluation" includes a report on all "data quality elements". An "indirect evaluation" includes only the "data
quality overview elements".
Let us assume we have only checked the purpose, usage, and lineage, and that we
will write the results in areport. The ISO 19115 (Metadata) provides the formal
names of all the necessary data elements. Accordingly, the "evaluationMethodType"
of the report will be "indirect" in this case.
Conceptually, the ISO 19115 covers the complete list ofthe metadata elements of
all ISO 19100 standards. An amendment to ISO 19115, ISO 19115:2 (Metadata for
imagery), will integrate further elements related to imagery. The detailed explanation
of every element within its thematic context is placed in each individual standard of
the 19100 family.
Data storage
In the terrninology ofthe ISO 19100 standards, the tourism-GIS is referred to as a
dataset. The elements of the dataset were called "objects" in the beginning of this
section. However, although the term "object" is familiar in the context of objectoriented languages, in the domain of geographie information - the term "feature" is
more widely used to denote an element of the dataset. The term "feature" has also
been adopted by the ISO 19100 standards.
The ISO 19109 (Rules for application schema) contains all the definitions related
to features. The core ofISO 19109 is the "General feature model" (GFM). It states
that a feature may have attributes and operations. Attributes identify whether a feature is a point, a curve, or a surface and operations identify whether the feature
changes according to external influences, like the theatre being closed in winter. Features may be logically grouped into larger units. For example, woods and fields both
belong to land use. A single element in the dataset, such as one ofthe hiking trails, is
37
ISO 19114. It rnight report values of the "data quality elements" in the following
way:
• Completeness: 100% coverage
• Logical consistency: no errors found
• Positional accuracy: ± 5m
• Temporal accuracy: last map revision 3 years ago, community information supplied last spring
• Thematic accuracy: topographie base map does not supply shelters and other
similar elements for tourist purposes
It might also report values ofthe "data quality overview elements", including:
• Purpose: tourism-GIS will enable an online information source of tourist details
and it will also promote tourism in the area
• Usage: dataset was assembled for the tourism-GIS
• Lineage: dataset was created under the supervision of the "Tourism-GISAssociation"
The ISO 19114 (Quality evaluation procedures) provides advice on different levels of detail for the quality check. For example, a "direct evaluation" includes a report on all "data quality elements". An "indirect evaluation" includes only the "data
quality overview elements".
Let us assume we have only checked the purpose, usage, and lineage, and that we
will write the results in areport. The ISO 19115 (Metadata) provides the formal
names of all the necessary data elements. Accordingly, the "evaluationMethodType"
of the report will be "indirect" in this case.
Conceptually, the ISO 19115 covers the complete list ofthe metadata elements of
all ISO 19100 standards. An amendment to ISO 19115, ISO 19115:2 (Metadata for
imagery), will integrate further elements related to imagery. The detailed explanation
of every element within its thematic context is placed in each individual standard of
the 19100 family.
Data storage
In the terrninology ofthe ISO 19100 standards, the tourism-GIS is referred to as a
dataset. The elements of the dataset were called "objects" in the beginning of this
section. However, although the term "object" is familiar in the context of objectoriented languages, in the domain of geographie information - the term "feature" is
more widely used to denote an element of the dataset. The term "feature" has also
been adopted by the ISO 19100 standards.
The ISO 19109 (Rules for application schema) contains all the definitions related
to features. The core ofISO 19109 is the "General feature model" (GFM). It states
that a feature may have attributes and operations. Attributes identify whether a feature is a point, a curve, or a surface and operations identify whether the feature
changes according to external influences, like the theatre being closed in winter. Features may be logically grouped into larger units. For example, woods and fields both
belong to land use. A single element in the dataset, such as one ofthe hiking trails, is