For your experiments, maybe are you interest in (and maybe you already know) that the GUI implementation of Smalltalk/X is very compatible with to the VisualWork. See:

2012/1/12 St�phane Ducasse <stephane.ducasse@inria.fr>

- One model can propose multiple spec.
- Declarative.
Now we should build more experience on it.
Apparently vw people are happy with literal spec.

Stef

> Is there some fundamental difference
> between Spec and ToolBuilder?
>
> Best
> � � � -Tobias
>
> Am 2012-01-12 um 16:57 schrieb Benjamin:
>
>> I have to work again on Spec and on this chapter to make it more sexy :)
>>
>> But basically, I think it can help to avoid having to don again and again the same UIs from scratch :)
>>
>>
>