[Cs3] Canonical vs non-canonical

[Mikhail Nesterenko]

> 
> Can you explain what is the difference between canonical and non0canonical
> ? Also why is registry a non-canonical pattern, I cannot find the answer on
> the internet.. Thank you!

canonicl patterns were described in the "Design Patterns"
book. Non-canonical patterns were described elsewhere. Reigstry was
described in "Patterns of Enterprise Application Architecture" by
Martin Fowler.

Thanks,
--
Mikhail