If you can’t beat them, absorb them. That seems to be Microsoft’s theory as it prepares its big entrance into the modeling arena by talking up extensibility here at the Tech·Ed Developers conference.

Microsoft’s emerging “Oslo” modeling language will be a low-level language, one designed to be work with domain-specific modeling languages as well as BPEL and Unified Modeling Language (UML).

But what’s to distinguish Oslo from other modeling languages, one might ask? Extensibility, according to Steven Martin, director of product management in Microsoft’s connected systems division. Oslo will be horizontal, he said, with an XML base that developers can use as a foundation technology.

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