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Thanks for the feedback Mike. The current plan is to simply fill in
the object model as implementation to support the use cases
progresses, but the general outline of the object model will be
similar to those earlier discussions. For example, I would imagine
there is no group object per se in the API, but rather a the ability
to define a hierarchical nesting of component objects. Similarly,
connection objects would be dropped in favour of relationships between
variable objects. Imported units and components are still components
and units - instantiation of imports is something that will likely be
handled quite separately.

Another avenue for feedback is to mock up code that demonstrates
various use cases. I have started some at
https://github.com/libcellml/use-case-mockups based on the use cases
we have so far
(https://github.com/cellml/libcellml/blob/develop/docs/usecases.rst),
but everyone should feel free to contribute such mock-ups - or even
better, actual tests! ;-)

As for math, its still a bit unknown - but bear in mind that libCellML
is designed, at least initially, to be a minimal implementation to
create and validate CellML models along with serialisation to and
deserialisation from CellML XML documents. Complete validation will
require, for example, units consistency within mathematical
expressions - but perhaps not the level of functionality you are
thinking. Perhaps those are some common utility type methods that sit
at a higher level than libCellML itself.


Cheers,
Andre.

On Thu, Apr 23, 2015 at 1:02 AM, Mike Cooling
<mtcooling.research AT gmail.com>
wrote:
> Hi
>
> ...and Maths...
>
> How would someone decide how many equations were in there?
> How would someone decide what variables were in those equations?
> [aggregation relationship? only composition and gen/spec was shown]
> Or access structures to do things like quickly replace all instances of one
> variable with another?
>
> etc
>
> Mike
>
>
>
>
> On Thu, Apr 23, 2015 at 10:36 AM, Mike Cooling
> <mtcooling.research AT gmail.com>
> wrote:
>>
>> Hi
>>
>> With just a quick look (like 30 seconds):
>>
>> So obviously there is a lot not shown, most properties and association
>> relationships, but I as a new reader am left wondering how you are planning
>> to deal with:
>>
>> groups [assuming they will still exist] (hierarchical relationships
>> between components?)
>> connections (some kind of collection property of variables, maybe?)
>> imported components and units ( tuples / source property on components and
>> units, maybe?)
>>
>>
>> Other than that the basic structure seems OK to me
>>
>> Cheerio
>>
>>
>>
>>
>>
>> On Wed, Apr 22, 2015 at 8:36 PM, Hugh Sorby
>> <h.sorby AT auckland.ac.nz>
>> wrote:
>>>
>>>
>>> Hi All,
>>>
>>> I have put together a starting point for the object model that I am
>>> proposing to use for libCellML. It is available at:
>>>
>>> https://github.com/hsorby/libcellml/blob/develop/docs/object_model.rst
>>>
>>> I would appreciate your opinion, as it is just starting out if something
>>> is not clear and requires further context just let me know and I'll add
>>> it.
>>>
>>> You can also leave comments on the GitHub pull request that this object
>>> model document belongs to here:
>>>
>>> https://github.com/cellml/libcellml/pull/10
>>>
>>> Cheers,
>>> Hugh.
>>>
>>> If you were wondering.
>>> - Yes this is a different model to the one proposed a few months ago.
>>> - Yes I didn't like the original proposal.
>>> - Yes we have had a staffing change.
>>> - Yes we no longer have a full-time developer working on this project
>>> (libCellML).
>>>
>>
>



--


David Nickerson
about.me/david.nickerson

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• [[cellml-dev] ] Object Model for libCellML, Hugh Sorby, 04/22/2015
  • Re: [[cellml-dev] ] Object Model for libCellML, Mike Cooling, 04/23/2015
    • Re: [[cellml-dev] ] Object Model for libCellML, Mike Cooling, 04/23/2015
      • Re: [[cellml-dev] ] Object Model for libCellML, David Nickerson, 04/27/2015
        • RE: [[cellml-dev] ] Object Model for libCellML, Richard Christie, 04/28/2015
          • Re: [[cellml-dev] ] Object Model for libCellML, David Nickerson, 04/28/2015
      • Re: [[cellml-dev] ] Object Model for libCellML, Hugh Sorby, 04/29/2015
  • RE: [[cellml-dev] ] Object Model for libCellML, Koray Atalag, 04/26/2015
    • Re: [[cellml-dev] ] Object Model for libCellML, David Nickerson, 04/27/2015

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