Question about Architectures and Versioning

[Andrew Layman]

How does one go about using Architectures to solve the following problem.
 
Suppose in version one of my documents, I have instances that look like
 
<Book>Gone With the Wind</Book>
 
In version 2, I have instances that look like
 
<Book>
    <title>Gone With the Wind</title>
    <author>
        <person>
            <firstname>Margaret</firstname>
            <lastname>Mitchell</lastname>
        </person>
    </author>
</Book>
 
How do I write my architectures so that the v2 instance is mapped to the v1
architecture?
 
Thanks,
 
Andrew Layman

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