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:
“In this nation I see tens of millions of its citizens, a substantial part of its whole population, who at this very moment are denied the greater part of what the very lowest standards of today call the necessities of life. I see one third of a nation ill-housed, ill-clad, ill-nourished. The test of our progress is not whether we add more to the abundance of those who have much, it is whether we provide enough for those who have too little.”
—Franklin D. Roosevelt (1882–1945)
“Chief among our gains must be reckoned this possibility of choice, the recognition of many possible ways of life, where other civilizations have recognized only one. Where other civilizations give a satisfactory outlet to only one temperamental type, be he mystic or soldier, business man or artist, a civilization in which there are many standards offers a possibility of satisfactory adjustment to individuals of many different temperamental types, of diverse gifts and varying interests.”
—Margaret Mead (1901–1978)
“The things a man has to have are hope and confidence in himself against odds, and sometimes he needs somebody, his pal or his mother or his wife or God, to give him that confidence. He’s got to have some inner standards worth fighting for or there won’t be any way to bring him into conflict. And he must be ready to choose death before dishonor without making too much song and dance about it. That’s all there is to it.”
—Clark Gable (1901–1960)