* Thomas B. Passin | | I think there is need to have it either way for different purposes | (such as queries), but aside from that I have always understood it | to be an "OR" situation just as you do. The XTM spec says the the | context is the union of all the individual scopes, so it really has | to be a "OR" doesn't it?

XTM doesn't say that. It says very clearly that "This specification places no constraints on how applications interpret scope."

If you look at section 2.2.1.6 you'll also see that there is nothing at all about this issue there.