Feedback and Help (2)
Command information if appropriate to the task, the user should be provided on request with information on: * commands available and their meaning * appropriate syntax structure * required and optional arguments available (especially if the number is large) * command entry history
Performance aids performance aids should be provided depicting command characteristics (e.g. name, function, syntax, parameters, abbreviations, hot key, function key assignment). [EXAMPLE using a keyboard template to depict function key assignments for commands or using a quick reference card to list all available commands and associated information]
Long argument lists if a command has long list of arguments and associated parameters, the use of additional dialogue techniques should be provided. [EXAMPLE for a command language with numerous arguments, the user can access a dialogue box that has a list with parameter values that can be selected for each command argument]