Particular lithology ORM diagram

This object-role modeling (ORM) diagram sample shows schema for particular lithology. It was designed on the base of the Wikimedia Commons file: Schema for Particular Lithology.gif. [commons.wikimedia.org/wiki/File:Schema_for_Particular_Lithology.gif] "The Particular Lithology schema (Figure 5) models the description of a particular rock. The information system should include a set of idealized "typical' Particular Lithology entities associated with each General Lithology to provide default values for characteristics not specified in the General Lithology definition. The Particular Lithology entity will also be used for the description of rock hand samples. A Particular Lithology is modeled as an aggregate of Constituents. The Constituents may be Mineral or other Particular Lithology entities, allowing for recursive description. Each Constituent may be involved in one or more Relationship_within_Whole associations (see Table 1 for examples) with the Particular Lithology." [pubs.usgs.gov/of/1999/of99-386/richard.html] The object-role model example "Particular lithology ORM diagram" was designed using ConceptDraw PRO software extended with ORM Diagrams solution from Software Development area of ConceptDraw PRO Solution Park.