The Open-Source community provided the important infrastructure for the development of the CoS middleware solution described by this paper. In the current implementation the three basic components of the IAA process are handled by the LDAP directory server provided by the OpenLDAP2 project and by the MIT Kerberos3 authentication system.
The success of this middleware implementation was a function of having access to source based tools which implemented commonly accepted standards and protocols for identification, authentication and authorization of users for information technology services.