摘要
Quality is a product to the customer after the test and use of the performance of the product in the index.If there is no problem,it is considered to be a product with good performance;if there is a problem,it becomes a product with poor performance.When a certain number of products have no quality problem after the experiment and operation,it is a good product.However,the evaluation of the use of the assembly after a certain period of time after the final customer should also be discussed.Only in this way can the product quality be improved fundamentally.A/S is a significant process when the retrospective production is done for its quality to be investigated.Retrospection becomes a new way to study and innovate manufacturer quality currently in busyness.In modern society the retrospect as A/S is more and more prevail at shopping mall in big city for customer convenient application.In terms of their rapid and good mending the excellent brand will be established for product quality yearby-year.
