Hi,

Alex Peake wrote:
> There is one aspect of MI that I find quite practical, from a productivity and a manageability
> perspective, and that is Mixins (as in CLOS, PLT Scheme, ..).
> 
> This allows localization of specializations, with complete sharing, excellent manageability and no
> need to build "wrapper" functions (as with Has-A).
> 
> Alex
> 


What are Mixins ? my knowlegde of Scheme and CLOS is very poor (and old 
too :-((

Thanks.

Greetings

Hans