Specifications

MllATD-1472E
5,15.4.8.3 Swxdementaw
verbal labels. Where icons w used to represent control actions in
menus, verbal labels shall be displayd with each icon to help assure that its intended meaning will be
understood.
5.15.5 Feedback
5.15.5.1 ~. Feedback shaIl be provided which presents status information, confirmation, and
verification throughout the interaction.
5.15.5.2 Stand-by. When system functioning requires the user to stand-by, a WORKING,
BUSY, or WAIT message or appropriate icon should be displayed until user interaction is again
possible. Where the delay is likely to exceed 15 seconds, the user should be informed. For delays
exceeding 60 seconds, a count-down display should show delay time remaining (see also 5.15.8).
5.15.5.3 Process outcome When a control processor sequence is completed or aborted by the
system, positive indication shall be presented to the user concerning the outcome of the process and the
requirements for subsequent user action.
5.15.5.4 Input conf-tion. Conflation shall not cause displayed data removal.
5.15.5.5 Current modes When multiple modes of operation exist, a means should be provided
to remind the user of the current mode.
5.15.5.6 Hi~h.li~htedorx.ionselection. Any displayed message or datum selected as an option
or input to the system shali be highlighted to indicate acknowledgment by the system.
5.15.5.7 User inmtt reiection. If the system rejects a user input, feedback shall be provided to
indicate the mason for rejection and the required corrective action. Feedback should be self
explanatory.
5.15.5.8 Feedback rness~e content. Users shall not be required to translate feedback messages
by use of refemce
system or code sheets. Abbreviations should be avoided.
5.15.5.9 Time-consuming motes
ses. The system shall give warning information when a
command is invoked which will be time consuming or expensive to process.
5.15.6 Prom@s.
5.15.6.1 I@. Prompts and help instructions shall be used to explain commands, error
messages, system capabilities, display formats, procedures, and squences and to
provide data.
Prompting should conform to the following:
a.
b.
c.
d.
When operating in special modes, the system should display the mode designation and file(s)
being processed.
Before processing any user requests which would result in extensive or final changes to
existing data. the system should require user confirmation.
When missing data are de(ec(ed, the syskrn shall prompt the user.
When data entries or changes will be nullified hy an abort action,
the user should be
Ic~uc>[cd [() L~)IItiIIIi [hC iibort.
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