Standards
Coverages represent digital geospatial information representing space/time-varying phenomena. OGC Abstract Topic 6 - which is identical to ISO 19123 - defines an abstract model of coverages. As such, it is not a suitable basis for implementations: many implementations are conceivable which all conform to this abstract model, but are not interoperable. This coverage model is concretized to the level of interoperability by the OGC standard GML 3.2.1 Application Schema - Coverages (often referred to as GMLCOV) which in turn is based on the Geography Markup Language (GML) 3.2, an XML grammar written in XML Schema for the description of application schemas as well as the transport and storage of geographic information.
The European legal framework for a unified Spatial Data Infrastructure, INSPIRE, in its Annex II and III relies on the OGC definitions of coverages as well, but modifies them in places in a way making them less compatible and interoperable with the OGC standard. For example, components of the coverage concept are selectively recombined into new, different definitions of a coverage.
Read more about this topic: Coverage Data
Famous quotes containing the word standards:
“With his brows knit, his mind made up, his will resolved and resistless, he advances, crashing his way through the host of weak, half-formed, dilettante opinions, honest and dishonest ways of thinking, with their standards raised, sentimentalities and conjectures, and tramples them all into dust. See how he prevails; you don’t even hear the groans of the wounded and dying.”
—Henry David Thoreau (1817–1862)
“The technologist was the final guise of the white missionary, industrialization the last gospel of a dying race and living standards a substitute for a purpose in living.”
—Max Frisch (1911–1991)
“In full view of his television audience, he preached a new religion—or a new form of Christianity—based on faith in financial miracles and in a Heaven here on earth with a water slide and luxury hotels. It was a religion of celebrity and showmanship and fun, which made a mockery of all puritanical standards and all canons of good taste. Its standard was excess, and its doctrines were tolerance and freedom from accountability.”
—New Yorker (April 23, 1990)