Behaviour of WS-Policy aware clients

Hello

A couple of questions on the expected behaviour of a WS-Policy aware client.

1. Suppose we have a policy with a *single* alternative which a policy-aware client can not support
due to the fact it does not *recognize* its assertions (no intersection is involved).
Is it expected to fail ? Can it attempt to initiate a communication with the provider ?

1. Suppose we have a policy which a policy-aware client can not support
due to the fact an intersection produced an empty set.
Is it expected to fail ? Can it attempt to initiate a communication with the provider ?

Thanks, Sergey Beryozkin
Iona Technologies