| Summary: | This thesis has been made in cooperation with Forsheda Stålverktyg AB which develops and manufactures injection moulds and diecasting tools. The main concern has been their Trading-system which provides them with considerable amount of quality lost function. Focus has to however be put on the analysis of the Trading-system due to the fact that this has previously meant various quality issues for the company. This thesis treats quality assurance of the Trading-system, identification of the problems in the process and improvements of these problems. Quality assurance is carried out when a company detects that their quality based costs become too high. Quality based cost are” the costs that would disappear if a company's products and its different operational processes were absolute” (Sörqvist, 2001 p.30, free translation from Swedish). High quality based costs often result in increased quality problems, which can lead to substantial economic loss for the company. This work has resulted in a thorough review of the Trading-system whereupon problems have been identified. In order to assure the quality process and lower the quality based costs, we have developed a control system. This, in order to avoid earlier made mistakes and assure that further problems with the system don’t occur. The developed system will result in more responsibilities for the customers, especially when reviewing the tool drawing and prototype. Thereby the errors and the quality based costs will decrease.
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