10 Heuristics for User Interface Design. Visibility of system status The system should always keep users informed about what is going on, through appropriate feedback within reasonable time.
(Read full article on visibility of system status.) Match between system and the real world. Jakob Nielsen: 10 usability heuristics, Stefane Fermigier's Nuxeo Blog. Un vieux (semble-t-il) papier de Jakob Nielsen, qui présente 10 principes fondamentaux d'ergonomie des interfaces informatiques. Visibility of system status The system should always keep users informed about what is going on, through appropriate feedback within reasonable time. NielsenUsability.pdf (application/pdf Object)