semantic desktop
Be File System (BFS), the metadata driven filesystem of BeOS that provided attribute queries, metadata editing and dynamic folders integrated into the desktop as part of Tracker, the file manager. Chandler, a personal information manager Dublin Core, a set of general terms for annotating web resources with metadata Haystack, an information client developed at MIT NEPOMUK, a specification for a social semantic desktop framework Tabbles, a desktop tagging tool for files, emails and bookmarks WinFS, a data storage and management system based on relational databases, developed by Microsoft