MIL-PRF-49503C (MI)
i. All menu options shall be consistent in their wording, ordering, and location, so that
they are readily distinguishable from any other information contained on the display.
j. Menu options shall be listed in a logical sequence or in descending order of frequency
of use.
k. Menus shall be formatted to indicate related groups of options rather than an unrelated
string of alternatives. Groups of related options shall be given a descriptive label that is
distinctive in format from the option labels. Should there be any conflict between this
paragraph and j (above), this paragraph takes precedence.
l. A hierarchic sequence of menu selection shall be provided rather than a single
multipage menu.
m. As a minimum, the menu hierarchy shall start at a "Main" menu (top most) to the 3
submenus of ATE, ICD, and UUT. After running tests, the hierarchy shall return user to a
"Print" menu before returning to the "Main" menu. The structure shall provide immediate
access to critical or frequently used options and minimize the number of steps required to
complete the sequence. The structure shall also provide the operator with his position
within the sequence structure.
n. Options that accomplish control entries shall be distinguished from options that branch
to other menu frames.
3.2.2.3 Function keys.
a. Each function key shall be labeled to indicate the function(s) it performs. The labels
shall be sufficiently descriptive to prevent operator confusion. Multifunction keys shall
indicate to the operator which function is currently active.
b. Function keys shall perform their designated function with a single activation. The
function of a key shall not change with repeated activations.
c. The TP shall provide an immediate acknowledgment of function key activation.
d. A key assigned a given function in one test shall be assigned the same function in all
other tests.
3.2.2.4 Displays.
a. The TP shall be designed to display all the data that the operator needs at any step in
the test sequence. Display screens shall not contain information that is not related to the
current task. Data shall be sufficient as to not require the operator to recall data from
previous displays.
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