Annex A: Terms and definitions ofthe ISO 19100 standards
241
feature substitution
feature succession in which one feature instance is replaced by another feature instance ofthe same or different feature type (IS040 2002)
EXAMPLE
An instance of feature "type building" is razed and replaced by an
instance offeature type "parking lot".
feature succession
replacement of one or more feature instances by other feature instances, such that the
first feature instances cease to exist (IS040 2002)
feature table
a table where the columns represent feature attributes, and the rows represent features (IS055 2000)
file
named set ofrecords stored or processed as a unit (ISOIEC07 1993, IS050 2002)
flattening (f)
ratio of the difference between the semi-major (a) and semi-minor axis (b) of an ellipsoid to the semi-major axis;f= (a-b)/a (IS043 2003)
NOTE
Sometimes inverse flattening 1/f = a/(a-b) is given instead; 1/f is
also known as reciprocal flattening.
full inspection
inspection ofevery item in a dataset (ISOI4 1993, IS046 2001)
NOTE
Full inspection is also known as 100% inspection.
function
rule that associates each element from a domain (source, or domain ofthe function)
to a unique element in another domain (target, co-domain, or range) (IS039 2003)
functionallanguage
programming language in which abstract data types are defined in terms of operations on the types, and in which algebraic axioms specify the results of each of the
operations for each ofthe types (IS042 2001)
NOTE
In a functional language, feature types may be represented as abstract data types.
functional standard
existing geographie information exchange standard developed specifically for transfer of data between entities in different nations, and currently used for that purpose
(IS0522001)
NOTE
GDF, S-57, and DIGEST are examples offunctional standards
gazetteer
241
feature substitution
feature succession in which one feature instance is replaced by another feature instance ofthe same or different feature type (IS040 2002)
EXAMPLE
An instance of feature "type building" is razed and replaced by an
instance offeature type "parking lot".
feature succession
replacement of one or more feature instances by other feature instances, such that the
first feature instances cease to exist (IS040 2002)
feature table
a table where the columns represent feature attributes, and the rows represent features (IS055 2000)
file
named set ofrecords stored or processed as a unit (ISOIEC07 1993, IS050 2002)
flattening (f)
ratio of the difference between the semi-major (a) and semi-minor axis (b) of an ellipsoid to the semi-major axis;f= (a-b)/a (IS043 2003)
NOTE
Sometimes inverse flattening 1/f = a/(a-b) is given instead; 1/f is
also known as reciprocal flattening.
full inspection
inspection ofevery item in a dataset (ISOI4 1993, IS046 2001)
NOTE
Full inspection is also known as 100% inspection.
function
rule that associates each element from a domain (source, or domain ofthe function)
to a unique element in another domain (target, co-domain, or range) (IS039 2003)
functionallanguage
programming language in which abstract data types are defined in terms of operations on the types, and in which algebraic axioms specify the results of each of the
operations for each ofthe types (IS042 2001)
NOTE
In a functional language, feature types may be represented as abstract data types.
functional standard
existing geographie information exchange standard developed specifically for transfer of data between entities in different nations, and currently used for that purpose
(IS0522001)
NOTE
GDF, S-57, and DIGEST are examples offunctional standards
gazetteer