The P3P Architecture and Process
The elements of a P3P-enabled web-context are as follows:
* personal data use and disclosure preferences expressed by web-users. A preference is a rule, or set of rules, expressed by a web-user, that determines what action(s) a user agent will take or allow when involved in a conversation or negotiation with a service. A preference might be expressed in conventional text, or as a formally defined machine-processable statement;
* personal data use and disclosure practices expressed by web-sites. A practice is a P3P clause expressed by a web-site that

