Expressiveness in conceptual data modelling
Data & Knowledge Engineering
The object constraint language: precise modeling with UML
The object constraint language: precise modeling with UML
The Unified Modeling Language reference manual
The Unified Modeling Language reference manual
The entity-relationship model—toward a unified view of data
ACM Transactions on Database Systems (TODS) - Special issue: papers from the international conference on very large data bases: September 22–24, 1975, Framingham, MA
Information modeling and relational databases: from conceptual analysis to logical design
Information modeling and relational databases: from conceptual analysis to logical design
NIAM Information Analysis Method: Theory and Practice
NIAM Information Analysis Method: Theory and Practice
A Logic Framework for a Semantics of Object-Oriented Data Modeling
OOER '95 Proceedings of the 14th International Conference on Object-Oriented and Entity-Relationship Modelling
Database Schema Transformation and Optimization
OOER '95 Proceedings of the 14th International Conference on Object-Oriented and Entity-Relationship Modelling
Conceptual Queries Using ConQuer-II
ER '97 Proceedings of the 16th International Conference on Conceptual Modeling
Object role modelling and XML-Schema
ER'00 Proceedings of the 19th international conference on Conceptual modeling
An ORM-Driven Implementation Framework for Database Federations
OTM '09 Proceedings of the Confederated International Workshops and Posters on On the Move to Meaningful Internet Systems: ADI, CAMS, EI2N, ISDE, IWSSA, MONET, OnToContent, ODIS, ORM, OTM Academy, SWWS, SEMELS, Beyond SAWSDL, and COMBEK 2009
ORM-Based Semantics of B2B Transactions
OTM '09 Proceedings of the Confederated International Workshops and Posters on On the Move to Meaningful Internet Systems: ADI, CAMS, EI2N, ISDE, IWSSA, MONET, OnToContent, ODIS, ORM, OTM Academy, SWWS, SEMELS, Beyond SAWSDL, and COMBEK 2009
OTM '09 Proceedings of the Confederated International Workshops and Posters on On the Move to Meaningful Internet Systems: ADI, CAMS, EI2N, ISDE, IWSSA, MONET, OnToContent, ODIS, ORM, OTM Academy, SWWS, SEMELS, Beyond SAWSDL, and COMBEK 2009
Predicate Reference and Navigation in ORM
OTM '09 Proceedings of the Confederated International Workshops and Posters on On the Move to Meaningful Internet Systems: ADI, CAMS, EI2N, ISDE, IWSSA, MONET, OnToContent, ODIS, ORM, OTM Academy, SWWS, SEMELS, Beyond SAWSDL, and COMBEK 2009
Business process modeling and ORM
OTM'07 Proceedings of the 2007 OTM confederated international conference on On the move to meaningful internet systems - Volume Part I
Modeling data federations in ORM
OTM'07 Proceedings of the 2007 OTM confederated international conference on On the move to meaningful internet systems - Volume Part I
Reduction Transformations in ORM
OTM'07 Proceedings of the 2007 OTM confederated international conference on On the move to meaningful internet systems - Volume Part I
Towards semantically grounded decision rules using ORM+
RuleML'07 Proceedings of the 2007 international conference on Advances in rule interchange and applications
Real-time integration of geo-data in ORM
OTM'10 Proceedings of the 2010 international conference on On the move to meaningful internet systems
A proposal for folding in ORM diagrams
OTM'10 Proceedings of the 2010 international conference on On the move to meaningful internet systems
Mapping ORM to datalog: an overview
OTM'10 Proceedings of the 2010 international conference on On the move to meaningful internet systems
Scalable analysis of conceptual data models
Proceedings of the 2011 International Symposium on Software Testing and Analysis
Enriched support for ring constraints
OTM'11 Proceedings of the 2011th Confederated international conference on On the move to meaningful internet systems
Fact-oriented modeling from a programming language designer's perspective
OTM'06 Proceedings of the 2006 international conference on On the Move to Meaningful Internet Systems: AWeSOMe, CAMS, COMINF, IS, KSinBIT, MIOS-CIAO, MONET - Volume Part II
Automated verbalization for ORM 2
OTM'06 Proceedings of the 2006 international conference on On the Move to Meaningful Internet Systems: AWeSOMe, CAMS, COMINF, IS, KSinBIT, MIOS-CIAO, MONET - Volume Part II
T-Lex: a role-based ontology engineering tool
OTM'06 Proceedings of the 2006 international conference on On the Move to Meaningful Internet Systems: AWeSOMe, CAMS, COMINF, IS, KSinBIT, MIOS-CIAO, MONET - Volume Part II
OTM'06 Proceedings of the 2006 international conference on On the Move to Meaningful Internet Systems: AWeSOMe, CAMS, COMINF, IS, KSinBIT, MIOS-CIAO, MONET - Volume Part II
Some features of state machines in ORM
OTM'06 Proceedings of the 2006 international conference on On the Move to Meaningful Internet Systems: AWeSOMe, CAMS, COMINF, IS, KSinBIT, MIOS-CIAO, MONET - Volume Part II
Object-Role Modeling: Principles and Benefits
International Journal of Information System Modeling and Design
APCCM '13 Proceedings of the Ninth Asia-Pacific Conference on Conceptual Modelling - Volume 143
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Object-role Modeling (ORM) is a fact-oriented modeling approach for specifying, transforming, and querying information at a conceptual level. Unlike Entity-Relationship modeling and Unified Modeling Language class diagrams, fact-oriented modeling is attribute-free, treating all elementary facts as relationships. For information modeling, fact-oriented graphical notations are typically far more expressive than other notations. Introduced 30 years ago, ORM has evolved into closely related dialects, and is supported by industrial and academic tools. Industrial experience has identified ways to improve current ORM languages (graphical and textual) and associated tools. A project is now under way to provide tool support for a second generation ORM (called ORM 2), that has significant advances over current ORM technology. This paper provides an overview of, and motivation for, the enhancements introduced by ORM 2, and discusses an open-source ORM 2 tool under development.