Hi Ralf:

the term "pattern" is used in two ways in my book:

1. a programming construct, e.g. propagation patterns and transportation 
   patterns.

2. In "Adaptive Visitor Pattern" I use the term pattern
   in the sense of a design pattern.

I should have said this explicitely.

-- Karl

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Dear Demeters,

thanks for your feedback, Karl.

The reason that we used propagation pattern
is related to the use of this term in the
attribute grammar community (though, even
there I would not be sure if everyone agrees).
It seems that transporation pattern would be
fine as well.

We will reconsider our pattern names.

I have a more general question.
I do not fully understand your use of the
term pattern in your book. In the introduction
to Chapter 8 I read that "With propagation patterns
we describe adaptive DESIGN patterns ..."
So this sounds like what I would expect from the
term pattern. Working through Section 8,
I hit on the syntax summary for propgation
patterns. And there it says "The basic syntax
for propagation patterns ...". Looking at this
and reading on I get the feeling that you use the
term pattern in the sense a programming construct.
More importantly you say "propagation patterns"
(i.e., plural) and you give one form. So this
really makes me think that one pattern would be
a specific traversal rather than a scheme or
a design pattern. What's wrong with my reading?

Regards,
Ralf