Semantic database for geographic information systems

摘要: A practical geographic information system necessitates the manipulation of an extensive amount spatially referenced data. From retrieval process to display function, burden on both hardware and software target data in a time restrictive manner is considerable creates impetus for development new techniques handling. The methods must ensure that representation user believable, useful, versatile accomplishes understood tasks GIS: represent graphically or pictorially, either statically dynamically, determinate span time, what would be exhausting if not impossible accomplish textually. key facet achievement these goals how are represented virtual storage medium which retrieved. systematic coordination between access method application processes highly detailed visual time-tolerant when relative. challenge implement ideals with technology most prevalent current potential users (research facilities, libraries, municipalities), serious consideration towards all desktop computer.