Sort of like a template was the first thought that came to my mind. I 
     agree that this is could be a better approach. Do you think that what 
     you are describing is similar to "Aspect Oriented Programming" as Joe 
     Davison has suggested or is it somehow significantly different? I took 
     a look at the web site and at first glance it seems similar.
     
     Jerome


______________________________ Reply Separator _________________________________
Subject: Re: Re[6]: Does Squeak include a generic node class?
Author:  Les Tyrrell <tyrrell at canis.uiuc.edu> at INTERNET
Date:    10/23/98 1:18 AM


     
>      I think I understand what you are saying but I am not sure. Could you 
>      give me a description of what you mean by "parameterized mixin" or 
>      provide a URL for a site. It is not a term with which I am familiar.
     
Analagous to a Template, but in my case perhaps more analogous to
a macro expansion.  However, neither of these would cover variations 
in implementation, but would take care of such things as variable and 
method names.
     
Variations in implementation starts getting into a somewhat more involved 
discussion.  Essentially, it is a recognition that there are usually several 
ways to achieve a certain goal, hence various means of resolving the conflicts 
of a Pattern ( in the Alexandrian sense ).  So a means of accomodating and 
managing those variations is needed, along with a means of composing patterns 
from other patterns, optimising the shape of a pattern to best fit a particular 
problem but according to the rules governing a pattern,etc.
     
Which is to say that at this point it is for me the beginnings of some notion 
about a way of doing some things... It gets involved. To describe it better, 
I'd have to build it.  This is only one of many things I would like to do, 
but never seem to get around to doing them.  Rather aggrevating, actually.
     
les