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Dear all,

I haven't gone through the detail of Andrew's draft, but a general point
occurred to me on reading the features list. Many tools would only
support a subset of these features (the most common being just ODEs with
no events). Does it make sense to require a secondary specification for
each combination of features, or should secondary specifications allow
for being combined to build up a desired feature set? In other words,
should the example instead be 3 specs (ODEs, DAEs, events) that can be
combined as a model author wishes?

Also, I can't recall whether there will be any mechanism for a model
document to declare which secondary specification(s) it uses, if any?

Best wishes,
Jonathan


On 12/09/2011 03:27, Andrew Miller wrote:
> Hi all,
>
> The draft CellML 1.2 specification I sent out last week
> (http://www.cellml.org/Members/miller/draft-normative-spec-andrews-preferred/toplevel.xhtml)
> is very generic and delegates the responsibility for narrowing down the
> scope of CellML to something that can be implemented to secondary
> specifications.
>
> To get an idea of what a secondary specification might look like, I've
> created a draft for models with the following features:
> * Differential algebraic equations (including ODEs) are supported.
> * There can be multiple dependent variables, but only one independent
> variable.
> * Basic events can be handled using boolean variables and piecewise
> based rules to make changes when events happen.
>
> The draft is available at:
>
> http://www.cellml.org/Members/miller/draft-secondary-spec-dae-events/toplevel.xhtml
>
> It is also up on GitHub:
> https://github.com/A1kmm/cellml-dae-events-secondary
>
> Best wishes,
> Andrew
> _______________________________________________
> cellml-tools-developers mailing list
> cellml-tools-developers at cellml.org
> http://lists.cellml.org/mailman/listinfo/cellml-tools-developers

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• [cellml-dev] Draft DAEs / events secondary specification for CellML 1.2, Andrew Miller, 09/12/2011
  • [cellml-dev] Draft DAEs / events secondary specification for CellML 1.2, Jonathan Cooper, 09/12/2011

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