On Tuesday 12 February 2002 10:30 pm, you wrote:
> Richard --
>
> Regarding 4a, I think a much better way to do this is with a multiple
> perspective architecture as in Goldstein and Bobrow's PIE system
> (done in Smalltalk at PARC).
>
> Cheers,
>
> Alan


	More info on PIE? I can find scant input on the web about it.

	Daniel