Lab 3 - Lab 3: Standard Time Using Time Study January 27,...

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Lab 3: Standard Time Using Time Study January 27, 2011 Megan Farrell Matt Ricard Executive Summary
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Initially the class watched a Power Point Presentation with sound and without sound to understand the process on how to conduct a time study and get a better idea of how to properly use a stop watch. Although it was hard to precisely time each step and how to fill out the Time Study Observation Sheet, it was easy knowing when to stop the time for each process and even became easier when sound was added. This PowerPoint presentation proved to be a good introduction to the time study process and sound could be used as a reinforcing tool when timing a process. Next, the class watched lady assembling a router and performed a time study on her two element process. Performing this time study proved to be much harder because it was difficult to precisely time each element with the many distractions and movements going on around the factory. One major difference in this example was that since the video was of a real process and a person was doing it there was a factor of human error which made the time for each element much more varied. There were a few instances where the factory worker had trouble attaching the part which increased the time for that element. At first it seemed that that this time should be thrown out because it seemed to be irregular, but human errors occur often in processes such as these and they must be accounted for so that the standard output is accurate. Finally, the class was given flashlights to assemble and conduct personalized time studies. There were two elements involved in the assembly; they were screwing in the light bulb and putting together the batteries and case then testing to see if it works. During the process of the time study, the flashlight became defective and needed to be replaced so that no defective products passed the testing element. This caused the time for that element to increase dramatically, however, if this were to occur in a real factory setting the time would need to be taken to fix the product, therefore it was decided that the time should be included in the standard time. Without this factor the average time would have been 7.63 seconds but because it was decided that this was a regular occurrence the full time was included and the average time for that element increased to 14.67 seconds. This caused the standard output per eight hour shift to decrease from 1158 to 902 flashlights; although this is a significant difference factors that affect the flashlight assembly must be taken into account. Attached are the lab specific questions and our answers (Appendix A) Purpose The purpose of this lab is intended to familiarize the students with the processes and analysis included in a time study. This includes breaking the task into elements, getting used to using the stop watch with precision, understanding how to use a Time Study Observation Sheet, learning how to establish the standard time, and interpreting the results.
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Lab 3 - Lab 3: Standard Time Using Time Study January 27,...

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