>      In this way, the design of a program "emerges", more than being
>      planned,

We should be careful not to confuse a term coined to describe a
specific research hypothesis in cognitive psychology - the
"programming plan" hypothesis - with the vernacular uses of the
individual words "programming" and "plan".

The cognitive phenomenon that we describe as "programming plans" 
can occur whether or not there is any "planning" in the software 
development process.

For people wishing to challenge this, it seems to me that the
only alternatives are:

1. there is nothing at all inside the programmer's head when he 
or she engages in eXtreme Programming

2. there is something there, but this mental representation is in
some form that was not anticipated in the research on
"programming plans".

3. the mental representation *is* of pretty much the same type 
described in the research on programming plans, but "programming 
plan" is the wrong word for it.

Anybody want to sign up to any one of these?

By the way, if you want to know some background on the 
definition of the term "Programming Plan", I believe that 
Gilmore & Green's 1989 paper in the Quarterly Journal of 
Experimental Psychology might be a good source. Don't have it 
with me right now.

Alan
-- 
Alan Blackwell           Computer Laboratory, University of Cambridge
http://www.cl.cam.ac.uk/users/afb21/       Phone: +44 (0) 1223 334418        



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