1 Matakuliah: D0194 / Perancangan Sistem Kerja & Ergonomi.

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1 Matakuliah: D0194 / Perancangan Sistem Kerja & Ergonomi

2 (Source : Kolarik in Creating Quality) Productivity is concerned with the efficient utilization of resources (input provided) in producing goods or services (output generated) Productivity Ratio = Output produced per a given time period Resource(s) consumed in production per a given time period

3 INPUTSKnowledgeSkillExperienceInformationFacilitiesMachinesToolsMaterialsSuppliesEnergies TRANSFORMATION OUTPUTGoodsServices

4 With reference the process concept figure, productivity associates quantities/costs of resources at the input to product at the output. The transformation process determines our level of productivity

5 (Source : Barnes, Motion and Time Study)

6 1.Partial productivity is the ratio of output to one class of input Example : material productivity is the ratio of output to material input, labor productivity is the ratio of output to labor input. 2.Total Productivity is the ratio of total output to the sum of all input Factors

7 E = 100 x HeHc E = Percent Efficiency He = Standard Hours Earned Hc = Clock Hours on Job Example : The standard time for an operator is minutes per piece. In an 8 hour shift. If the operator produced 53 pieces in an given Working day, The operator’s efficiency would be : (Source : Russel, Taylor III in Operations management)

8 Good quality units (input)(processing cost) + (defective units) (rework Cost) Source : Kolarik in Creating Quality Waktu Jumlah Output Kecepatan Kerja Kesalahan