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Hjem > Udstilling > Indhold
Kvalitet og inspektion
Mar 21, 2018

Fire grundlæggende kategorier af omkostninger, kvalitet er beskrevet i følgende:

1, forebyggelse---udgifter til planlægning, implementering og vedligeholdelse af et kvalitetsstyringssystem, der sikrer conformance kvalitetskrav på økonomisk niveau. Et eksempel på forebyggelse omkostninger er træning i brugen af statistisk proceskontrol.

2, vurdering---udgifter til bestemmelse af graden af conformance kvalitetskrav. Et eksempel på vurdering omkostninger er inspektion.

3, intern fejl---omkostninger, der opstår når produkter, komponenter og materialer ikke opfylder kvalitet krav forud for overførsel af ejerskab til kunden. Et eksempel på intern fejl omkostninger er skrot.

4, eksterne mislykkes---omkostninger Når produkter ikke opfylder kvalitetskravene efter overdragelse af ejendomsretten til kunden. Et eksempel på undladelse af eksterne omkostninger er garantikrav.

Selv om kvalitetskontrol er fastsat for en stor del af Sandsynlighedsregning og statistiske beregninger, er det meget vigtigt, at de data indsamling processer som disse procedurer er afhængige af relevante og præcise. Den bedste statistiske procedure er værdiløse, hvis fodret defekt data, og som bearbejdningsprocesser, inspektion dataindsamling er selv en proces med praktiske begrænsninger af nøjagtighed, præcision, opløsning og repeterbarhed.

Alle inspektion og/eller målingen processer kan defineres ud fra deres nøjagtighed og repeterbarhed, ligesom en fremstillingsproces er evalueret for nøjagtighed og repeatablity. Kontrollerede eksperimenter kan udføres kan, og statistiske foranstaltningerne af resultaterne være at bestemme effektiviteten af en metode til kontrol i forhold til dele skal inspiceres. Egnetheden af en eller anden metode kan bedømmes på grundlag af standardafvigelser og sikkerhedsgrænser, der gælder for hver metode, som anvendes i en given inspektion situation.     (slut)

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