USABILITY
... Usability Requirements (1): Instructions Description: The diary system should have an area where the user can learn how to use the system, and how to recover if any errors are made. ... Usability Requirements (2): Repeat Functions Description: The system should allow the user to enter in any repeat functions like meetings without having to keep typing them over and over again. ... Usability Requirements (3): Visibility Description: The diary system should always keep the user exactly informed about which part of the system they’re I, and to do this within in quick time. ... Usability Requirements (4): Stopping errors Description: The diary system should provide functions that will prevent errors from occurring. ... Usability Requirements (5): Description: The system should provide a navigation tool for the online diary system.