Forget about every stage it's not possible in any stage of life. The capacity to produce quality product obviously varies from person to person and organisation to organisation but whenever the quantity exceeds that capacity quality is bound to suffer (here quality means your expected level of quality not other's level or customer's perceived level of quality). It's a trade off, you can either spend on TQM, 6 and 8 sigma, Quality Circle and whatever or you can spend that amount to incease your production.
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