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Manufacturing quality: Difference between revisions
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==Methodology ideas== | ==Methodology ideas== | ||
We need to do some case studies using whatever data we can find. There are lots of ways we could analyze the data; here are a few possible ideas: | We need to do some '''case studies''' using whatever data we can find. There are lots of ways we could analyze the data; here are a few possible ideas: | ||
* '''Cost divided by lifespan:''' Pick some type of consumer good to analyze. Look at what's on the market (cheap models, expensive models) and maybe also what ''was'' on the market at some point (old models, especially ones that were really built to last). For each model, find some way to estimate the typical lifespan (either from specs given by the manufacturer, or from empirical data from consumer usage{{x|might be hard to find; worst case, just use your own anecdotal experience of the product; better than no data at all, as long as you're transparent about how the data was obtained}}, or from both). For each model, divide its price{{x|corrected for inflation, in the case of old models}} by its lifespan, to get a sort of "cents per day" estimate. This is all based in the assumption that costs (or maybe wholesale prices) are a reasonably accurate reflection of the resources that went into a product. | * '''Cost divided by lifespan:''' Pick some type of consumer good to analyze. Look at what's on the market (cheap models, expensive models) and maybe also what ''was'' on the market at some point (old models, especially ones that were really built to last). For each model, find some way to estimate the typical lifespan (either from specs given by the manufacturer, or from empirical data from consumer usage{{x|might be hard to find; worst case, just use your own anecdotal experience of the product; better than no data at all, as long as you're transparent about how the data was obtained}}, or from both). For each model, divide its price{{x|corrected for inflation, in the case of old models}} by its lifespan, to get a sort of "cents per day" estimate. This is all based in the assumption that costs (or maybe wholesale prices) are a reasonably accurate reflection of the resources that went into a product. | ||
* '''Full life cycle analysis''' involving materials, labor, energy (or carbon emissions assuming the energy mix comes from mainly fossil fuels). {{en}} This may be hard to find. | * '''Full life cycle analysis''' involving materials, labor, energy (or carbon emissions assuming the energy mix comes from mainly fossil fuels). {{en}} This may be hard to find. | ||