From: Pascal Costanza
Subject: More about Patterns...
Date: 
Message-ID: <ckhnjq$mhl$1@newsreader2.netcologne.de>
Hi,

Dick Gabriel has written a position statement for OOPSLA 2000 called "Is 
Worse (Still) Better?" - 
http://www.dreamsongs.com/NewFiles/WorseIsBetterPositionPaper.pdf

The following section is from that paper:

"More disappointing is witnessing this same effect at work in the 
patterns community. Christopher Alexander�s ideas of patterns has as its 
smallest part the pattern form � the concept of patterns really has to 
do with pattern languages and QWAN (the Quality Without a Name). It is 
not about construction tricks. It is about building artifacts not only 
suitable for human habitation, but artifacts that increase their human 
inhabitants� feeling of life and wholeness. Alexander is all about 
beauty and quality, not about how to stick things together cleverly.

Yet, the most popular form of software patterns is exemplified by those 
found in �Design Patterns,� by Gamma, Helm, Johnson, and Vlissides, 
which contains little more than techniques for coding in C++ constructs 
found in other programming languages � for example, 16 of the 23 
patterns represent constructs found in the Common Lisp language. There 
is no pattern language involved, and there is nothing about QWAN. 
Interest in patterns is coagulating around the so-called Gang of Four 
style, and it looks like things could get worse. In fact, I would say 
that patterns are alive and well as a form of documentation and a quest 
for clever solutions to common programming problems, and pattern 
languages, QWAN, and the quest for a better future are now on their way 
to the sewage treatment plant � the same place they went to in the world 
of architecture. Down with quality, up with clever hacks. Why worry 
about what makes a user interface beautiful and usable when you can 
wonder how to do mapcar in C++."

Some more food for thought can be found in Christopher Alexander's 
OOPSLA'96 keynote - see 
http://www.patternlanguage.com/archive/ieee/ieeetext.htm

"I understand that the software patterns, insofar as they refer to 
objects and programs and so on, can make a program better. That isn't 
the same thing, because in that sentence �better� could mean merely 
technically efficient, not actually �good.� Again, if I'm translating 
from my experience, I would ask that the use of pattern language in 
software has the tendency to make the program or the thing that is being 
created is morally profound -- actually has the capacity to play a more 
significant role in human life. A deeper role in human life. Will it 
actually make human life better as a result of its injection into a 
software system? Now, I don't pretend that all the patterns that my 
colleagues and I wrote down in A Pattern Language are like that. Some of 
them are profound, and some of them are less so. But, at least it was 
the constant attempt behind our work. That is what we were after. I 
don't know whether you,  ladies and gentlemen, the members of the 
software community, are also after that. I have no idea. I haven't heard 
a whole lot about that. So, I have no idea whether the search for 
something that helps human life is a formal part of what you are 
searching for. Or are you primarily searching for - what should I call 
it - good technical performance? This seems to me a very, very vital issue."


Pascal

-- 
Tyler: "How's that working out for you?"
Jack: "Great."
Tyler: "Keep it up, then."