Constituent geometry ORM diagram

This object-role modeling (ORM) diagram sample shows schema for constituent geometry. It was designed on the base of the Wikimedia Commons file: Schema for Constituent Geometry.gif. [commons.wikimedia.org/wiki/File:Schema_for_Constituent_Geometry.gif] "Constituent Geometry... models a data structure for describing the geometry of individual constituents in a Particular Lithology. These descriptions are based on terms that may have qualitative or quantitative definitions (e.g. round, subround, euhedral, subhedral, fine-grained) or on free text descriptions referenced by "descID'. The Constituent Geometry description has two sub-classes, Grain Geometry and Body Geometry, because different terminology is used when describing individual grains or lithologic components in a mixed rock." [pubs.usgs.gov/of/1999/of99-386/richard.html] The object-role modeling diagram example "Constituent geometry ORM diagram" was designed using ConceptDraw PRO software extended with ORM Diagrams solution from Software Development area of ConceptDraw PRO Solution Park.