Every user can search, retrieve, create and store documents. Every document can consist of any number of parts each of which may be of any data type. 2g Links are visible and can be followed from all endpoints. 2h Permission to link to a document is explicitly granted by the act of publication. Every document is uniquely and securely identified.
Every document can have secure access controls.
Every document can be rapidly searched, stored and retrieved without user knowledge of where it is physically stored. Every document is automatically moved to physical storage appropriate to its frequency of access from any given location. Every document is automatically stored redundantly to maintain availability even in case of a disaster. Every Xanadu service provider can charge their users at any rate they choose for the storage, retrieval and publishing of documents. Every transaction is secure and auditable only by the parties to that transaction.