MIL-HDBK-1908B
Maintainability, design for gen. Design considerations directed toward achieving those combined characteristics of equipment and facilities which will enable the accomplishment of necessary maintenance quickly, safely, accurately, and effectively with minimum requirements for personnel, skills, special tools, and cost.
Maintenance gen. All actions necessary for retaining material in (or restoring it to) a serviceable condition. Maintenance includes servicing, repair, modification, modernization, overhaul, inspection, condition determination, corrosion control, and initial provisioning of support items.
Man-machine interface gen. The actions, reactions, and interactions between humans and other system components. This also applies to a multistation, multiperson configuration or system. Term also defines the properties of the hardware, software or equipment which constitute conditions for interactions.
Man-man interface gen. The actions, reactions, and interactions (i.e., transactions) among persons as they perform jobs, duties, and tasks to operate and maintain a manned system, including peer-peer and subordinate-supervisor interactions.
Management information system (MIS) uci/acq. An organized assembly of resources and procedures required to collect, process, and distribute data for use in decision making.
Manpower and personnel requirements acq. The number of trained personnel required to operate, maintain and support system equipment in its operational environment. Manpower refers to the number of people and personnel refers to their skills. Efficient operation of the system, or piece of equipment, depends in part on the proper mix and skill level of military and civilian personnel. Information generated by this element serves as a basis for manpower and personnel planning and programming decisions and setting related parameters and constraints on human engineering analysis and design.
Masked threshold snv. The sound pressure level, in dB, at which a signal becomes distinguishable from other signals and/or noise.
Master caution (warning) signal gen. A signal which indicates that one or more caution
(warning) lights have been actuated. (See "Caution signal" and "Warning signal.")
Materiel design standard gen.. Design standards that provide requirements to equipment designers and manufacturers.
Menu uci. A list of options from which a user makes a selection.
Menu selection uci. A type of dialogue in which the user selects one item out of a list of displayed alternatives, whether the selection is by pointing, by entry of an associated option code, or by actuation of an assigned function key.
Message uci. Data that are transmitted from one computer user to another as a discrete transaction or data that are displayed to users to aid in performing their tasks. (See "Data transmission" and "User guidance.")
Metric equivalents, abbreviations, and prefixes gen. Metric (SI) units, inch-pound units, and multipliers to convert from metric to inch-pound units and the converse are presented in
Table I. For more complete listings, see ASTM or IEEE SI 10.
Mission acq. See "Task analysis."
Mission area acq. A location in an aircraft occupied by flight members during a flight mode. A
flight member may occupy more than one mission area during a mission.
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