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bwang
Junior Member

Registered: Aug 2005
Location: UK
Posts: 3

How can make XMI interchangeable

It is well-know that XMI cannot be interchanged even between XMI-compliant systems.
My question is that whether the following sentence is correct. “Only XMI generated from different IDEs which use the same meta-model is interchangeable.”

Thanks in advance.

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Old Post 08-22-2005 02:39 PM
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mike.lehmann
Junior Member

Registered: Sep 2005
Location:
Posts: 2

XMI data depends on a meta-model

The XMI is only a format to generally serialize models. But those models are defined by a meta-model, and this meta-information is used by XMI. Thus a model element in a XMI-file is alway augmented by the meta-type that further describes what this element really is, what attributes it has, what other elements it main contain or reference, etc.

Thatway the meta-model is important to give the data stored in XMI a meaning, and of course knowledge of the meta-model is needed in order to understand a XMI-file.

When you look into an XMI 1.x file the tag names relfect the meta-types; in XMI 2.0 its either the tag name, or the xsi:type attribute.

Bottom line: In order to understand the model in an XMI-file the IDE must know the meta-model that the model is modelled in.

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Old Post 09-13-2005 12:51 PM
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