Rationale for a Common Reference Model

       The common reference model should use objects of learning material that have the following property:-

•   Durable – do not require modification as versions of system software change

•   Interoperable – operate across a wide variety of hardware, operating systems and Web browsers

•  Accessible – can be indexed and found as needed

•  Reusable – can be modified and used by many different development tools

Collaboration is required for development of such a model..

.....The Sharable Content Object Reference Model is intended to be such a model