Re: packages and private parts

[Ken Garlington <GarlingtonKE@lmtas.lmco.com>]

Tucker Taft wrote:
> 
> In my view, the point of encapsulation and information hiding is
> not really to "hide" something, or to prevent it from being
> changed (or "destroyed' ;-).  Rather it is to make it easier to find all
> code that depends on a particular implementation choice, so that
> when the implementation is inevitably changed, you can track down all the
> potentially affected code and fix it as necessary.

This is also a primary motivation for the use of encapsulation/IH in the
Software Productivity Consortium's ADARTS methodology, which we've used
with some success. 

Based on my limited Ada 95 experience to date, I've
found that child packages support system integrity, not threaten it.

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