Notes is a sophisticated groupware application from the Lotus Corporation, a subsidiary of IBM. Notes lets a corporation and its workers develop communications- and database-oriented applications so that users at different geographic locations can share files with each other, comment on them publicly or privately (to groups with special access), keep track of development schedules, work projects, guidelines and procedures, plans, white papers, and many other documents, including multimedia files. Notes keeps track of changes and makes updates to replications of all databases in use at any site. Changes are made at the field level to minimize network traffic.