163 ;;Quote: need to control and filter information that is received electronically

164 ;;Quote: many messages, mail, and documents received each day by Denning

164 ;;Quote: except for private mail; all mail should be filtered to limit the information flow

164 ;;Quote: can restrict mailbox access to authorized individuals according to organization chart

164 ;;Quote: private mailbox with address given to selected friends and associates

164 ;;Quote: messages can be ranked by importance number selected by sender and a bias selected by receiver for each sender

164 ;;Quote: mailboxes can have an 'asking price' to filter out mail with low 'bid's; receiver gets asking price from sender

165 ;;Quote: each document can be a hierarchy of parts which is read at any level; e.g., the opening sentences of paragraphs

165 ;;Quote: trusted authorities could certify quality numbers for certain classes of documents