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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 ...
Object-oriented role analysis and modeling (OOram) is a method, based on the concept of role, for performing object-oriented modeling. [1]Originally (1989) coined Object Oriented Role Analysis, Synthesis and Structuring (OORASS), the method focuses on describing patterns of interaction without connecting the interaction to particular objects/instances.
NORMA (Natural ORM Architect for Visual Studio) [1] is a conceptual modeling tool that implements the object-role modeling (ORM) method. The NORMA tool is named after Dr.Terry Halpin's wife Norma Halpin (Terry Halpin, 11am, March 4, 2019) [2]
Object-role modeling [ edit ] With his doctoral thesis Halpin (1989) formalized object-role modeling (ORM), [ 4 ] a "method for designing and querying database models at the conceptual level, where the application is described in terms easily understood by non-technical users".
Object–Role Modeling (ORM) is a method for conceptual modeling, and can be used as a tool for information and rules analysis. [25] Object–Role Modeling is a fact-oriented method for performing systems analysis at the conceptual level. The quality of a database application depends critically on its design.
Eventually the Object-Role Model concept became a basic feature for methods and tools for information analysis and for developing information systems, such as Fact-oriented Modeling, Natural-language Information Analysis Method (NIAM), and Object-Role Modeling (ORM). [8]
The object-modeling technique (OMT) is an object modeling approach for software modeling and designing. It was developed around 1991 by Rumbaugh, Blaha, Premerlani, Eddy and Lorensen as a method to develop object-oriented systems and to support object-oriented programming. OMT describes object model or static structure of the system.
Many [quantify] researchers have argued the advantages of roles in modeling and implementation. Roles allow objects to evolve over time, they enable independent and concurrently existing views (interfaces) of the object, explicating the different contexts of the object, and separating concerns. Generally roles are a natural element of human ...