Object-Role Modeling (ORM) Diagrams

This object-role modeling (ORM) diagram sample was designed on the base of the Wikimedia Commons file: Orm modell beispiel.gif. [commons.wikimedia.org/ wiki/ File:Orm_ modell_ beispiel.gif]
"Object-role Modeling (ORM) is a fact-oriented modeling approach for expressing, transforming and querying information at a conceptual level. Unlike Entity-Relationship modeling and Unified Modeling Language class diagramming, fact-oriented modeling is attribute-free, treating all elementary facts as relationships expressed in natural language sentences. For information modeling, ORM graphical notations are typically far more expressive than other notations, and ORM’s attribute-
free nature promotes semantic stability and facilitates natural verbalization." [www.orm.net/ pdf/ ORM2_ TechReport1.pdf]
The object-role model example "Object role modeling example" was designed using ConceptDraw PRO software extended with ORM Diagrams solution from Software Development area of ConceptDraw PRO Solution Park.

This ORM diagram sample presents object-role model overview.
It was designed on the base of the Wikimedia Commons file: Object-Role Model Overview.jpg. [commons.wikimedia.org/ wiki/ File:Object-Role_ Model_ Overview.jpg]
"Object-role modeling (ORM) is used to model the semantics of a universe of discourse. ORM is often used for data modeling and software engineering.
An object-role model uses graphical symbols that are based on first order predicate logic and set theory to enable the modeler to create an unambiguous definition of an arbitrary universe of discourse. Attribute free, the predicates of an ORM Model lend themselves to the analysis and design of graph database models in as much as ORM was originally conceived to benefit relational database design. ...
More recently ORM has been used to model business rules, XML-Schemas, data warehouses, requirements engineering and web forms." [Object-role modeling. Wikipedia]
The ORM diagram example "Object-role model overview" was designed using ConceptDraw PRO software extended with ORM Diagrams solution from
Software Development area of ConceptDraw PRO Solution Park.

This object-role modeling (ORM) diagram sample shows schema for geologic fractional analysis.
It was designed on the base of the Wikimedia Commons file: Schema for Fractional Analysis.gif. [commons.wikimedia.org/ wiki/ File:Schema_ for_ Fractional_ Analysis.gif]
"The Fractional Analysis (Figure 3) concept is used to model any situation in which an entity is composed of other entities in certain proportions. Common examples are chemical analyses, grain size-distributions, and modal mineralogy. Constituent types used in Fractional Analyses are specified in a system classification table. Constituents that are used as fractional parts of a described entity must be allowed as components of a Fractional Analysis of the Described Entity." [pubs.usgs.gov/ of/ 1999/ of99-386/ richard.html]
The object-role model example "Fractional analysis ORM diagram" was designed using ConceptDraw PRO software extended with ORM Diagrams solution from Software Development area of ConceptDraw PRO Solution Park.

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.