BU385 Study Guide - Midterm Guide: Job Enrichment, Human Factors And Ergonomics, Standard Deviation
Document Summary
Methods analysis: breaks down the job into a sequence of tasks and elements and improves it , uses process and worker-machine charts, motion study systematic study of human motions used to perform a task . Work measurement: determining how long it should take to complete a job . Three methods to measure work: 1) stopwatch, 2) predetermined element times, 3) work sampling, stopwatch time study. Pr < 1 (worker is slower than the norm) Pr > 1 (worker is faster than the norm: 3rd: st = nt * af. Af = 1 + allowance % (job time) Af = (1 / 1 allowance %) (time in day: job time used when different tasks have different allowances, time in work day used when different tasks have similar allowances. Assembly-line balancing (types of questions: the precedence diagram, the bottleneck, determine cycle time, determine theoretical min. Predetermined element times: published data based on extensive research on element times , not testable.
