Hi all, I was looking at X.501 specification, section 14.5 about "System schema supporting access control". It says:/ If a subentry contains prescriptive access control information, then its objectClass attribute shall contain the value accessControlSubentry: accessControlSubentry OBJECT-CLASS ::= { KIND auxiliary ID id-sc-accessControlSubentry } A subentry of this object class shall contain precisely one prescriptive ACI attribute of a type consistent with the value of the id-sc-accessControlScheme attribute of the corresponding access control specific point. /My question is: what's the point of /not having/ an attribute specifier in the objectClass definition like this: / accessControlSubentry OBJECT-CLASS ::= { KIND auxiliary ID id-sc-accessControlSubentry MUST CONTAIN {prescriptiveACI} } /? Thanks. -- Ersin