Search results
Results from the WOW.Com Content Network
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 ...
Compared to traditional techniques of exchange between an object-oriented language and a relational database, ORM often reduces the amount of code that needs to be written. [2] Disadvantages of ORM tools generally stem from the high level of abstraction obscuring what is actually happening in the implementation code. Also, heavy reliance on ORM ...
Doctrine, open source ORM for PHP, Free software (MIT) CakePHP, ORM and framework, open source (scalars, arrays, objects); based on database introspection, no class extending; CodeIgniter, framework that includes an ActiveRecord implementation; Yii, ORM and framework, released under the BSD license. Based on the ActiveRecord pattern
Atlas ORM (data mapper, table data gateway, query builder, and PDO wrapper) [3] Doctrine2 Object Relational Mapper (ORM) and the Database Abstraction Layer [4] Cycle ORM (PHP DataMapper ORM and Data Modelling Engine) [5] CakePHP ORM (PHP DataMapper ORM, query builder, and PDO wrapper)
Terry Halpin led the original NORMA effort whilst serving as a Professor at Neumont University and from 2007, continued via The ORM Foundation, [4] a UK-based non-profit organization dedicated to the promotion of the fact-based approach to information modeling ORM2 is defined in an ORM2 metamodel that was created by using the NORMA tool.
Software Platform Availability License Version Persistence Specification Apache Cayenne: Java: Open source: Apache License 2.0 : 4.2.1 [1] / 2024-06-14; 6 months ago : Dapper.NET 4.0
Entity Framework (EF) is an open source [2] object–relational mapping (ORM) framework for ADO.NET. It was originally shipped as an integral part of .NET Framework, however starting with Entity Framework version 6.0 it has been delivered separately from the .NET Framework. Entity Framework 6.4 was the latest release of the classic framework.
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".