Getting rid of metaclasses (Was: Behaviors vs Modules)

Alan Kay Alan.Kay at squeakland.org
Tue Feb 26 00:30:00 UTC 2002


Thanks Jerry!

Cheers,

Alan

-----

At 5:53 PM -0600 2/25/02, Jerry Bell wrote:
>Hi all,
>
>I have a couple of PIE documents which the folks at PARC were nice enough to
>copy and send me.  They are scanned and I've just made them available:
>
>A Layered Approach to Software Design
>(Ira P. Goldstein and Daniel G.Bobrow, CSL-80-5 December 1980)
>1.9 MB
>
>http://www.dolphinharbor.org/docs/PIE%20Layered%20Approach.pdf
>
>and:
>
>An Experimental Description-Based Programming Environment: Four Reports
>(Ira Goldstein and Daniel Bobrow, CSL-81-3 March 1981)
>3.18MB
>
>http://www.dolphinharbor.org/docs/PIE%20four%20reports.pdf
>
>Both are (c) Xerox.  I hope there is no problem posting them.
>
>
>Hope these are useful,
>
>Jerry Bell
>
>
>
>
>
>
>>  -----Original Message-----
>>  From: squeak-dev-admin at lists.squeakfoundation.org
>>  [mailto:squeak-dev-admin at lists.squeakfoundation.org]On Behalf Of Jim
>>  Benson
>>  Sent: Sunday, February 24, 2002 10:47 PM
>>  To: squeak-dev at lists.squeakfoundation.org
>>  Subject: Re: Getting rid of metaclasses (Was: Behaviors vs Modules)
>>
>>
>>  Nathanael,
>>
>>  > The ideas of having multiple roles/views/perspectives
>>  associated to an
>>  > object sounds very interesting and promising. I'd really
>>  like to know more
>>  > about these PIE system and its implementation. If you have
>>  any pointers to
>>  > some information, please let me know.
>>  >
>>
>>  The only place I've seen any of this written up was in the
>>  book Interactive
>>  Programming Environments [1984] edited by Barstow, Shrobe,
>>  Sandewall, ISBN
>>  0-07-003885-6. PIE is written up as "A Layered Approach to
>>  Software Design"
>>  by Goldstein and Bobrow. pp 387-413. This paper was
>>  originally published as
>>  Xerox Parc CSL-80-5.
>>
>>  Whenever I want to be depressed, I just pick that book up and
>>  start reading.
>>  It represented the state of the art in '84, and it's amazing
>>  how little
>>  things have advanced since then.
>>
>>  I haven't found anything online, but I hoped that this
>>  information might
>>  help.
>>
>>  Jim
>>
>>
>>


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