Schema diagram

[Mike Fitzpatrick]

One quick suggestion:  Is it possible to color-code the required vs optional
attributes?

On Mon, Mar 21, 2011 at 9:11 AM, Roy Williams <roy.williams at ligo.org> wrote:

> Rob
>
> Please think of including the attached as a figure to sum up VOEvent2.
> Perhaps it is not final yet: we have uri, name, content for the Reference,
> and I understand we will be adding more semantic tags.
>
> One thing the picture makes clear, I think, is that Description and
> Reference have their own "positional semantics". (If you unpack your child's
> toy and there is a document called "Instructions", then it is obviously
> instructions for that particular toy, and you know this because of where you
> *found* the document, without further parsing.) For example, each Param can
> have at most one Description and Reference. Therefore, if there is a
> Reference associated with a Param, then that is presumably describing that
> Param in more detail. No need for semantic tags, the position does it.
>
> Roy
>
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