IEEE 1023-1988 pdf free.IEEE Guide for the Application of  HumanFactors Engineering to Systems, Equipment,and Facilities of Nuclear Power Generating Stations.
IEEE 1023 Function allocation refers to the conscious design decisions which determine the extent to which a given job, task,function, or responsibility is to be automated or assigned to human performance.Such decisions should be based uponaspects such as relative capabilities and limitations of humans versus machines in terms of reliability, speed, accuracy,strength and flexibility of response, cost, and the importance of successful and timely task or function accomplishmentto successful and safe operations. A wide variety of allocations is possible, ranging from totally automated functionswith personnel merely overseeing and monitoring machine performance, through totally human dominated manualtasks.At the finest level of refinement, function allocation also includes determining specific roles and responsibilitiesof various personnel operating as a team to accomplish the function.
The extent to which the demands of any given task or group of tasks tax the attention, capacities, and capabilities ofpersonnel (individually and as a crew) in the system and thus affect performance should be considered. The human’sresponsibilities in the whole should be designed to provide adequate loading.
At the extremes, performance will suffer when humans are overloaded or underloaded.Overloading can take the formof requiring personnel to keep track of, and attend to, too many factors at the same time (sometimes referred to aschannel stress) or requiring response at a rate beyond the human capability (speed stress). Performance will degradeunder nontaxing,nonarousing, nonstimulating, underloading conditions, all of which lead to boredom and inattention.
The format of and rate at which data are presented to the human is a task loading consideration. Also, the physiologicallimitations of the human body, such as strength,endurance, range of motion, and the capability to apply force or torquecan be challenged by the design and requirements of a given task.IEEE 1023 pdf download.