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Eliyahu Goldratt

The Goal: A Process of Ongoing Improvement

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  • Aleksey Golovanovfez uma citaçãohá 2 anos
    I set the bowls in a line along the length of the table and put the matches at one end. And this gives me a model of a perfectly balanced system.
  • Aleksey Golovanovfez uma citaçãohá 2 anos
    "No, it won’t be three,’’ I tell them. "The mid-point between one and six isn’t three.’’
  • Aleksey Golovanovfez uma citaçãohá 2 anos
    It’s starting to make sense. Our hike is a set of dependent events...in combination with statistical fluctuations.
  • Aleksey Golovanovfez uma citaçãohá 2 anos
    And mostly it’s an accumulation of slowness—because dependency limits the opportunities for higher fluctuations
  • Aleksey Golovanovfez uma citaçãohá 2 anos
    And what is operational expense? It’s whatever lets us turn inventory into throughput, which in our case would be the energy the boys need to walk. I can’t really quantify that for the model, except that I know when I’m getting tired.
  • Aleksey Golovanovfez uma citaçãohá 2 anos
    So as the slower than average fluctuations accumulate, they work their way back to me. Which means I have to slow down. Which means that, relative to the growth of inventory, throughput for the entire system goes down
  • Aleksey Golovanovfez uma citaçãohá 2 anos
    I’m the last operation. Only after I have walked the trail is the product "sold,’’ so to speak. And that would have to be our throughput—not the rate at which Ron walks the trail, but the rate at which I do.
  • Aleksey Golovanovfez uma citaçãohá 2 anos
    What’s happening isn’t an averaging out of the fluctuations in our various speeds, but an accumulation of the fluctuations
  • Aleksey Golovanovfez uma citaçãohá 2 anos
    Most of the factors critical to running your plant successfully cannot be determined precisely ahead of time,’
  • Aleksey Golovanovfez uma citaçãohá 2 anos
    For one thing, there is a mathematical proof which could clearly show that when capacity is trimmed exactly to marketing demands, no more and no less, throughput goes down, while inventory goes through the roof,’’ he says. "And because inventory goes up, the carrying cost of inventory—which is operational expense—goes up. So it’s questionable whether you can even fulfill the intended reduction in your total operational expense, the one measurement you expected to improve.’’
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