Re: Digital Twin applied to Software

Digital Twins do not need any mapping within their boxes. The only 
requirement is that the same inputs give the same desired outputs. Total 
independence would enhance software quality to the max.

Now, I am proposing that one twin is used for discovery of algorithms 
while the other implements the desired algorithm fast. We are porting 
algorithm not porting Smalltalk code necessarily.
We truly want and can have the best of both worlds.

Thanks,
Aik-Siong

andre wrote:
> As said, there is no formal mapping.
>
> One could enforce a common denominator (design patterns) at both ends, like shared pointers for all objects, only virtual methods at the C++ end and strong typing at the Smalltalk end. In reality it get's a lot more complex than that (need for class-side virtual methods, reflection).
>
> That would rob each side of its unique advantages. You would get something a C++ compiler can compile, but not C++. Not much would be left of the performance gain.
>
> The new Smalltalk compiler would have to deal with strong typing and the exceptions and dependency management it implies. It'd be a new language.
>
> Porting Smalltalk to C++ involves a lot of deep thought and manual work that can be assisted by tools only to some extent. Porting C++ to Smalltalk is even more daunting (almost impossible, I would say) except for simple classes and domains.
>
> Another approach is to embedd a Smalltalk interpreter or VM into a C++ application. That way you get a solid foundation with dynamic extensibility. Should work fine for CAD.
>
> Andre
>
> --
>
>> On 7. Nov 2022, at 03:57, Aik-Siong Koh <[email protected]> wrote:
>>
>> Andre:
>>
>> You understand my Digital Twin idea perfectly. Your statement sums it all:
>> "The ideal case for using both languages together might be to explore uncharted terrain with Smalltalk and port to C++ after a sound architecture has settled."
>>
>> Anyone doing this systematically? How to promote Digital Twin? How to turn this Smalltalk advantage into a business?
>>
>> I am applying idea to Pharo and OpenCascade to create Digital Twins of CAD software. Any feedback or interest would be greatly appreciated.
>>
>> All the best,
>> Aik-Siong
>>
>