Object–role modeling: Difference between revisions

Revision as of 19:28, 7 September 2020

Revision as of 03:25, 4 October 2020

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The term "object-role model" was coined in the 1970s and ORM based tools have been used for more than 30 years – principally for [[data modeling]]. More recently ORM has been used to model [[business rules]], XML-Schemas,

[[data warehouse]]s, requirements engineering and web forms.<ref>{{Cite journal | last = Jarrar | first = M. | doi = 10.1007/978-3-540-75563-0_14 | title = Towards Automated Reasoning on ORM Schemes | journal = Lecture Notes in Computer Science. Proceedings of the 26th International Conference on Conceptual Modeling | series = Lecture Notes in Computer Science | volume = 4801 | pages = 181-197181–197 | year = 2007 | isbn = 978-3-540-75562-3 | citeseerx = 10.1.1.148.6251 }}</ref>

== History ==

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[[G.M. Nijssen]] made fundamental contributions by introducing the "circle-box" notation for object types and roles, and by formulating the first version of the conceptual schema design procedure. Robert Meersman extended the approach by adding subtyping, and introducing the first truly conceptual query language.

Object role modeling also evolved from the ''Natural language Information Analysis Method'', a methodology that was initially developed by the academic researcher, [[G.M. Nijssen]] in the Netherlands ([[Europe]]) in the mid-1970s and his research team at the Control Data Corporation Research Laboratory in Belgium, and later at the University of Queensland, Australia in the 1980s. The acronym '''NIAM''' originally stood for "Nijssen's Information Analysis Methodology", and later generalised to "Natural language Information Analysis Methodology" and ''Binary Relationship Modeling'' since G. M. Nijssen was only one of many people involved in the development of the method.<ref>{{cite book |last=Wintraecken |first=J. J. V. R. |date=1990 |origyear=1987 |title=The NIAM information analysis method: theory and practice |series=Translation of: Informatie-analyse volgens NIAM |___location=Dordrecht; Boston |publisher=[[Kluwer Academic Publishers]] |isbn=079230263X |oclc=19554537 |doi=10.1007/978-94-009-0451-4 |s2cid=30209824 |url=https://books.google.com/books?id=iJaqCAAAQBAJ}}</ref>

In 1989 [[Terry Halpin]] completed his PhD thesis on ORM, providing the first full formalization of the approach and incorporating several extensions.

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| isbn = 978-0-13-167263-5}}

* {{Citation

| lastlast1 = Rossi

| firstfirst1 = Matti

| last2 = Siau

| first2 = Keng

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* {{Citation

| lastlast1 = Halpin | firstfirst1 = Terry

| author-link = Terry Halpin

| last2 = Evans | first2 = Ken

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| isbn = 978-1-55860-919-8 }}

* {{Citation

| lastlast1 = Halpin | firstfirst1 = Terry

| author-link = Terry Halpin

| last2 = Morgan | first2 = Tony