willingness in joint action

[Francis McCabe <frankmccabe@mac.com>]

Sooo, while I agree that willingness is a kind of association class, I  
am uncomfortable with this diagram:

for two reasons: Willingness is a noun and associations are  
predicates, and there are other important associations that could be  
drawn here, such as ability, authority, all kinds of stuff.

Thoughts?

Frank

smime.p7s