ISO/IEC 9594-7:2005 provides specifications for how information about objects, e.g. persons, is organized, created, maintained and retrieved. It also gives provision for protecting stored information through authentication and access control specifications.ISO/IEC 9594-7:2005 defines a number of selected object classes and name forms which may be useful across a range of applications of the Directory. An object class definition specifies the attribute types which are relevant to the objects of that class. A name form definition specifies the attributes to be used in forming names for the objects of a given class.