Hi, I'm very new to zope and have to eximine, if it's usable for our requirements. The question I have, is very simple or perhaps very difficult, I don't know. Our requrements are a permissioning system which depends on a matrix: There are two independend qualities which describe, if a user is allowed to see a document. This can be displayed in a matrix. Only if *both* qualities match, the user is allowed to see it. As far as I understand zope, it is not possible to map this directly (as by all other systems I know). So my question: Is it possible to connect a permission (or role) in zope with a method (instead of a static flag which was set)? If it is possible, it should be possible to call a special algorithm with this request, which can implement whatever is needed. So, it would be (easy) possible to *integrate* this functionality. (I called this permissions "dynamic", because the are evaluated when requestet.) Or does anybody has another (better) idea? Any help is very apreciated, Heinz-Josef Claes hjclaes@web.de