×

Evaluation method and its apparatus of work shop and product quality

  • US 6,625,511 B1
  • Filed: 03/16/2000
  • Issued: 09/23/2003
  • Est. Priority Date: 09/27/1999
  • Status: Expired due to Term
First Claim
Patent Images

1. A method of evaluating a failure occurrence likelihood of a manufacturing workshop, comprising:

  • a workshop database preparation step of creating previously a workshop evaluating database to be stored for preparation, said workshop evaluating database indicating correspondence relations between a plurality of workshop-conditioned failure influential items set previously and failure occurrence ratio indexes at least for standard manufacturing works at standard workshop facility levels for said workshop-conditioned failure influential items, respectively;

    a step of extracting from said workshop evaluating database prepared in said workshop database preparation step those failure occurrence ratio indexes which correspond to workshop facility levels of an inputted evaluation-undergoing manufacturing workshop for the workshop-conditioned failure influential items, respectively; and

    a workshop evaluation step of evaluating through estimation the failure occurrence likelihood in said evaluation-undergoing manufacturing workshop by totalizing the extracted failure occurrence ratio indexes for a plurality of concerned workshop-conditioned failure influential items to thereby determine arithmetically the indexes indicating the failure occurrence ratios for the standard manufacturing works, respectively, in said evaluation-undergoing manufacturing workshop.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×