Managing document annotations in a publish/subscribe system

摘要: Managing document annotations in a publish/subscribe system is described. A publishing creates of that include references to where the are be displayed; stores separately from document; names an annotation set using tags; sets roles and permissions for use set, including access based on time and/or location constraint subscribing user; publishes broker by users. subscribes user document, wherein each separate includes reference displayed. The also defines role user, controlled role, constraints user.