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XMI is also commonly used as the medium by which models are passed from modeling tools to software generation tools as part of model-driven engineering. Examples of XMI, and lists of the XML tags that make up XMI-formatted files, are available in the version 2.5.1 specification document.
Illustration of the Meta-Object Facility. The Meta-Object Facility (MOF) is an Object Management Group (OMG) standard for model-driven engineering.Its purpose is to provide a type system for entities in the CORBA architecture and a set of interfaces through which those types can be created and manipulated.
For example, the ordering of many of the graphical elements in a BPMN (Business Process Model and Notation) diagram is depicted by arrows between those elements, but the specific elements can have a variety of characteristics. For example, all BPMN events have some common characteristics, and a variety of specific events are designated by the ...
A model always conforms to a unique metamodel. One of the currently most active branches of Model Driven Engineering is the approach named model-driven architecture proposed by OMG. This approach is embodied in the Meta Object Facility (MOF) specification. [citation needed] Typical metamodelling specifications proposed by OMG are UML, SysML ...
The OMG organization provides rough specifications rather than implementations, often as answers to Requests for Proposals (RFPs). The OMG documents the overall process in a document called the MDA Guide. Basically, an MDA tool is a tool used to develop, interpret, compare, align, measure, verify, transform, etc. models or metamodels. [5]
For example, a UML Profile abstract syntax (extending the UML 2.1 meta-model) has been defined for MODAF to support XMI-based file exchange between tools and repositories. But interoperability with DoDAF tools will be difficult because MODAF made significant changes to some DoDAF products and adds two new viewpoints.
The OMG Structured Metrics Metamodel (SMM) [1] specification defines a standard Metrics Metamodel. It is a publicly available specification from the Object Management Group (OMG). SMM specifies a metamodel for defining, representing and exchanging both measures and measurement information related to any structured information model, such as the ...
The vision of BPMN 2.0.2 is to have one single specification for a new Business Process Model and Notation that defines the notation, metamodel and interchange format but with a modified name that still preserves the "BPMN" brand. The features include: Formalizes the execution semantics for all BPMN elements.