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The XML Metadata Interchange (XMI) is an Object Management Group (OMG) standard for exchanging metadata information via Extensible Markup Language (XML). It can be used for any metadata whose metamodel can be expressed in Meta-Object Facility (MOF) , a platform-independent model (PIM).
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.
XMI – XML Metadata Interchange, an OMG metadata interchange standard CWM models enable users to trace the lineage of data – CWM provides objects that describe where the data came from and when and how the data was created.
The exchange format is defined by XSD (XML Schema) and XMI (XML for Metadata Interchange), a specification for transformation of OMG metamodels to XML. Pursuant to the OMG's policies, the metamodel is the result of an open process involving submissions by member organizations, following a Request for Proposal (RFP) issued in 2003. BPDM was ...
An ATL program (T1.atl here) will take model Ma.xmi as input and will produce model Mb.xmi as output. Both models may be expressed in the OMG XMI standard. The model Ma conforms to metamodel MMa.km3. Model Mb conforms to metamodel MMb.km3. The KM3 notation is a simple and neutral metamodel specification language.
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 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]
In 2011 OMG formed the Cloud Standards Customer Council. [2] Founding sponsors included CA, IBM, Kaavo, Rackspace and Software AG.The CSCC is an OMG end user advocacy group dedicated to accelerating cloud's successful adoption, and drilling down into the standards, security and interoperability issues surrounding the transition to the cloud.