Ergonmic checklists - Work Method
- Does the task involve a heavy muscular load; if so, does this limit
selection of worker?
- Does the work involve overloading small muscle groups?
- Can the workload be transferred by method change to larger muscle
groups thus reducing fatigue?
- To what extent can muscular effort be reduced by using suitable equipment?
- To what extent are heavy loads snatched or carried awkwardly?
- Are small or large muscle groups involved in static exertion by holding
tools or material; can jigs be used?
- Is alternation of work and rest, and of static and dynamic work built
into the work method?
- Is the pattern of movement in agreement with the principles of motion
- Does the task require great accuracy of movement; is there an absence
- Is there the recommended compatible relation between direction of
movement of control and the resultant effect?
- Can the controls be recognized easily by shape, size, labeling, color,
for both normal use and in emergency?
- Are the controls as near as possible to the corresponding sources
- Are the positions of controls in the right sequence for the performance
of the task?
- Do workers receive sufficient information regarding the process flow
- Have data to be processed before required action can be taken?
- Have different data to be compared before action can be taken?
- Are any data to be estimated?
- Are standards of comparison available and used?
- Are parts to be assembled, supplied correctly pre-orientated?
- Can signals be confused?
- Do signals always have the same level of significance?
- Is the task adapted to the capacities of older workers; considering
thought, sight, hearing, touch and movement as separate processes?
- Are there adequate rest pauses during the monitoring work; to what
extent can rest be taken during the task?
Flow of Information
- Are the data required to carry out the task obvious, unequivocal,
- Is every part of these data necessary for performance; are differing
and appropriate amounts of data available during the learning process?
- Is the rate of information likely to exceed the mental capacity of
the operator and to overload him or her before the end of the task?
- Can the relative advantages of seeing, hearing, touching, smelling,
etc. be used to advantage in spreading the information load more evenly?
- Is the rate of information likely to underload the operator?
- How are signals to be detected when the worker's mind is occupied
by monitoring actions?
- Do the various displays of different information vary in more than
one aspect? To what extent can they be distinguished from each other
simply and in emergency?
- How much information has to be retained for longer than three seconds;
to what extent is it reinforced by retrieval?
- Is the attention span longer than about 20 minutes if a signal can
occur at any time; but does it occur less than about four times per
- Can signals from different sources occur simultaneously or almost
simultaneously; is this more likely to happen in an emergency when
the consequences of misinterpretation could be catastrophic?
- Can preferred signals be easily distinguished?
- Do identical or very similar signals occur for a long time and are
they frequently repeated?
- To what extent does the worker have to make one or more choices in
response to a signal, and how soon does he or she know if the choice
- Are all the factors relevant to a decision presented at the right
time and sequence?
- Is adequate time allowed for decisions and resulting actions, not
only in the normal circumstance but more importantly in the emergency?
- To what extent does rapid feedback give the results of system adjustment;
to what extent is there a knock-on effect?
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checklist - Workplace