Guide to writing quality summary report (5 selected articles)

Summary is a kind of written material to evaluate and describe the achievements, existing problems and lessons, which can make sporadic, superficial and superficial perceptual knowledge rise to comprehensive, systematic and essential rational knowledge. It's time to write a summary. So do you know how to write a summary? The following are the guidelines for writing quality summary reports compiled by Xiao Gang (5 selected articles). Welcome everyone to learn from and refer to. I hope it helps you.

Description of model essay on quality summary report writing (5 selected articles) Model essay on quality summary report writing120-it has become yesterday in a blink of an eye. In the past year, it was also an extraordinary year for-,and we carried out a number of equipment transformation and new product development; It also experienced the huge shock wave brought by the global financial crisis, which made people feel a lot. The work of the quality department in 20- 2000 needs to be reviewed. The work of the quality department is mainly divided into seven parts: ISO quality system operation, incoming inspection of purchased raw materials, quality inspection and analysis, finished product inspection and packaging, measurement management and quality control.

I. Operation of ISO quality system

The main work of ISO quality system can be summarized as "three audits, one calibration and one revision", in which "three audits" refer to external audit, internal audit and management review, and calibration refers to the calibration of measuring instruments; Revision refers to the revision of the operation index file. The main work of the quality system in 2008 includes:

The quality department led the audit team to conduct a comprehensive audit of all departments of X-X companies in 1 and 20 years, and found X unqualified items and issued 3 observation items. All the rectification has been completed within the prescribed time limit as required.

2. From X to X, 2020, Huadian Wanfang Certification Company conducted an external audit of our company, and the results were satisfactory: there were no unqualified items (slight or serious), but two suggestions needed to be rectified. Relevant departments of the company have rectified the suggestions made by the external audit and revised some external documents.

3. The company assisted the general manager to hold a "management review meeting" on X, 2020, and the quality department was responsible for the implementation and tracking of the meeting resolutions.

4. In order to ensure the continuous suitability, sufficiency and effectiveness of the quality management system, in 2000, the quality manual and procedure documents were revised according to the standards, the responsibilities and scope were clarified, and new standard documents were added.

5. In view of the nonstandard packaging materials of our products in Pinggu construction site at the beginning of the year, the labels of all our products' packaging materials were standardized in 10.

Second, the raw materials purchased parts into the factory inspection

The department has strengthened the quality monitoring of raw materials purchased parts: all raw materials purchased parts included in the ISO quality management system have been tracked and tested. This year, due to the rising prices of various raw and auxiliary materials, the quality of some raw and auxiliary materials has declined, and the quality department has strengthened the inspection of raw materials and purchased parts. Most of the raw materials are received at a discount, which also brings some troubles to the subsequent processing efficiency. It is still necessary to strengthen the supervision of raw materials and strictly implement the return system to ensure the improvement of raw material quality; For purchased parts, the quality department makes great efforts to communicate with peers, strengthen data comparison, and conduct spot checks on purchased parts entering the factory several times a month. The test error has been effectively reduced, but the sampling and sample preparation need to be further improved to ensure the timeliness and timeliness of the test data.

Third, the quality inspection and analysis

This piece is the main work of the quality department. From 20 to 2000, the production load has been changing, the unstable factors in production have increased, and all kinds of testing work have also increased greatly: this year, there are a large number of semi-finished products, and paint is often scraped off during storage and stacking. Sometimes, due to the change of the original arrival time, the delivery time has to be postponed, which makes the finished products and semi-finished products in the finished product warehouse fade. Although there are touch-up measures, the appearance quality of the products is also affected. This is where we should pay special attention in future production. Only by thinking from multiple angles can we do a good job in a more comprehensive way, improve our sense of responsibility, and make it clear from thought to action that "quality is the market". No matter how good the internal quality is, the products will be eliminated by the market. We always believe that product quality is produced. As long as every employee in the production department has a high sense of quality and puts himself into every link of production and operation, the product quality will be steadily improved to meet the quality requirements of customers. Therefore, we must further strengthen the management of all links in the production process, so as to make a new breakthrough in our production level and product quality.

Four, finished product inspection and packaging

The company's main product is dust collector, and the inspection workshop is the last process to test the quality of dust collector products, which directly faces customers and has great responsibility. In 20 days, the company overcame the difficulties of shortage of personnel, narrow packaging space, and many product specifications and batch numbers, and successfully completed the quality control of the finished product of the dust collector. The key performance indicators such as finished product inspection, raw material control and installation quality control have been well completed. There were no major customer complaints throughout the year.

Verb (abbreviation of verb) measurement management

Verification of measuring instruments: please ask the personnel of technical supervision bureau to compare and calibrate measuring instruments abroad as planned. Some testing equipment is calibrated regularly, which effectively reduces the cost. At present, the company has classified the archives of measuring instruments into the quality department for unified filing, and has done relevant external work as required.

Six, quality control

From 20 to 2000, the core of the production system was "quality". The employees of the quality department felt that the company paid more attention to quality work, and the workload and coverage of the quality department also increased. According to the requirements of the company to deepen quality work, the quality department improves the quality of quality personnel and follows up new products and standards in time. Do a good job in quality management planning and strictly control the quality to ensure that the quality of the company's products and services can meet the needs of market development and customers. In terms of quality control, we will make great efforts to strengthen the control of product testing methods and system problems. We have mainly taken the following measures:

1, record the work of the day with a log, and summarize and analyze the quality of the month with a monthly report, so that the company leaders can make decisions;

2. Quality seminar and customer complaint analysis meeting: ① At the request of the company, the general manager presided over the quality seminar and the quality department participated. The meeting mainly discussed the engineering quality problems and their causes, and made an in-depth analysis of the engineering quality problems. (2) call cadres and technicians to participate in the "quality analysis meeting". The meeting analyzed and summarized the project situation, deeply analyzed the causes of the problems, and formulated relevant action targets from raw material procurement, finished product inspection to product installation.

3. Strengthen the tracking of the production status, varieties and specifications of dust collectors, and feed back the production fluctuation in time. And design statistical reports, complete quality records and statistics. Intuitive display of product quality. It has played a positive role in maintaining the company's entire management system and improving product quality.

4. Strengthen the training of employees: people are the most important factor in quality control, and the quality of employees plays a decisive role in quality control. Therefore, the quality department has intensified its training. Each workshop also strengthened the training in management and technology, and at the same time, taking the company's "internal training" as an opportunity, the employees and team leaders were trained in "sampling inspection, incentive management, time management, employees' professional awareness, quality control of quality control department" and other related trainings.

Shortcomings in 20 years' work and 20 years' improvement plan;

Looking back on the past year, with the efforts of all quality control personnel, we have achieved the goal of systematization and standardization of the quality department: working according to the process, judging according to the standard, recording the work and recording the statistics. The company's quality management system has also been improved, and the existing system has been enriched and improved through the drafting and revision of relevant system documents. Introduce relevant quality statistical methods to strengthen the statistics of quality objectives and the tracking of quality anomalies. But there are still some shortcomings to be improved in 20- 2000:

1, the project quality control is not perfect, and the project manager should reflect the project quality problems in time, because the quality control scope is wide, including all aspects of the company's quality control system. The project manager should always report the project quality to the quality department. The company will improve the organizational structure of the quality department in 20- 2000 to ensure the normal operation of the quality control system;

2. Although the quality control mechanism has been established, it still needs to be further improved. In the future, we will take the opportunity of "ISO 9001:20-20-internal auditor training" to re-establish the "internal auditor team" and comprehensively carry out the quality system work. Strengthen the supervision and inspection of the quality system of each department to ensure the effectiveness, suitability and adequacy of the quality system;

3. In 2000, the turnover of personnel in this department was still serious. In addition to strengthening its own work, it also urges the company to comprehensively and systematically consider, increase the support of policies and benefits, and reduce the negative impact of employee turnover on quality;

4. In view of the problems in production operation, do a good job in various tests, provide "accurate and timely" test data for production, strengthen communication and coordination between production departments, and timely feed back production anomalies and various fluctuations. Serve the production department well and improve the "quality";

5.20- 2000, each department will designate a quality manager to attend the meeting organized by the quality department to convey the spirit of the meeting and cooperate with the quality management.

Time flies, 20- 2000 is coming to an end and will soon become a thing of the past. The past year was an extraordinary year, and it also recorded the bits and pieces of our journey. As a functional department in charge of the company's quality control, I deeply understand the workload of this year, and I am very grateful for the support and care of my superiors and my colleagues. When we are about to meet the new tasks and challenges in 2000, let's first review the relevant situation of quality work in 2000:

First, strengthen product quality management.

Ensure product quality In order to ensure the quality of our products, we should carry out inspection in strict accordance with product requirements to prevent missed inspection and wrong inspection. Strictly implement the relevant inspection regulations and technical requirements of the company during the inspection. Storage and circulation of qualified products. For nonconforming products, according to the relevant process of nonconforming products, issue a nonconforming product review and treatment form and report it to relevant departments, cooperate with them to analyze the reasons, improve measures and follow up.

Second, the training and improvement of inspection skills.

1, compared with last year's training work, the training method and quality have been obviously improved. It is mainly reflected in the training of outsourcing professional knowledge and the exchange of technical experience in the same industry, which has accumulated valuable experience for our future work. Can provide inspection guarantee according to the different requirements of customers for products, and reach an agreement on product requirements. 2. Through the * * * inspection and the situation reflected on the spot, the requirements of inspectors when inspecting products are emphasized, and the inspection is carried out in strict accordance with the process card and inspection procedures.

Third, in terms of raw materials and product performance inspection.

1. Molding sand plays an important role in the product. According to the process requirements, the molding sand inspector is required to test the molding sand performance of the sand mixer in the workshop every day and the flow of molding sand, resin and curing agent every month to ensure the stability of molding sand. Reducing the porosity and porosity of castings, reducing the amount of resin and curing agent, on the one hand, improving the yield of products, and at the same time greatly reducing the production cost. This year, the tensile strength of the new X-shaped test block was tested, which provided a strong guarantee for the performance of molding sand. As the saying goes: three points of modeling, seven points of melting. The spectral detection in front of the furnace provides reference data for smelting and ensures the correctness and stability of components; The detection of chemical composition provides a basis for the after-furnace analysis of casting product composition; In addition, the detection of chemical trace elements such as titanium, copper and chromium has been increased this year, which is helpful to control the trace elements in products. In terms of raw materials, the incoming inspection of resin and curing agent has been increased, and the data information has been fed back to relevant departments in time to ensure the stability of products.

2. The management of casting test blocks is also a key improvement project this year: the original management is very irregular. Through the efforts of physical and chemical personnel, we overcame the difficulties, classified the test blocks according to customers, established a detailed ledger and established a complete company test block warehouse.

Four, for this year's output and yield targets

In view of this year's planned annual output of X million tons and the goal of x% qualification rate, the actual output will be -T and the qualification rate will be x% in 20 years, which is basically the same as last year, especially the quality problems of wheels, pedestals, planetary carriers and boxes this year, which have a great impact on the qualification rate this year. I hope to make persistent efforts next year and strive to achieve the target value.

Verb (abbreviation of verb) ISO quality system

In order to better improve and promote the role of ISO quality system in enterprises, the third-level documents of quality system were sorted and compiled in X month and X month respectively, and passed the ISO quality system certification audit in X year's annual review, and then passed the quality system certification audit of first-level customers one after another. The purpose of supplier evaluation and inspection is to start from the source, avoid potential problems and minimize risks. This year, the evaluation of raw material iron, scrap steel, molding sand, coating, resin, curing agent and other production suppliers was completed. It provides a strong guarantee for production, and at the same time improves the "Management Measures for Supplier Quality Claims". First, the product quality is effectively controlled, and second, our loss and production cost are reduced.

Seven, check the defects

1. Due to more newly developed products and diversified varieties this year, besides ductile iron castings, gray iron castings are also produced at the same time. As a result, the inspection can not grasp the key points, resulting in a certain degree of missed inspection, especially in the dimension inspection, which needs to be improved.

2. Inspectors lack foresight and experience in their work, and their sense of responsibility needs to be strengthened. When product problems are found, we should give timely feedback, communicate with production and technology, and strive to put forward improvement measures to solve the problems as soon as possible.

3. Insufficient knowledge of products and weak inspection skills. The root cause of repeated quality problems has not been found, and the corresponding measures have not formed a closed loop, leading to similar problems happening again and again. 20 years is a brand-new year and a year of self-challenge. I will try my best to correct the shortcomings in my work in the past year, do better in the new year and work hard for tomorrow. Let's join hands to create a brilliant tomorrow!

Time flies, time flies. On this day of saying goodbye to the old and welcoming the new, I look back on my work in the past year. With the support and help of the company's leaders and colleagues, based on my professional foundation and work experience, in accordance with the company's unified deployment and requirements, with the goal of low consumption, high efficiency, quality assurance and on schedule, I fully completed the management functions of the engineering department. Coordination and cooperation, hard work, do everything possible to ensure the realization of the set goals throughout the year, and better complete the tasks assigned by the company, and the overall construction of the engineering department has also jumped to a new level. The work this year is briefly summarized as follows:

I. Completion of tasks throughout the year

At the beginning of the year, I began to get in touch with relevant knowledge and materials-it is both an opportunity and a challenge for me, and it is more important for me to meet such challenges. To this end, I collect and study more deeply in my spare time to consolidate my professional knowledge and meet the challenges. Do a good job in bidding for pile foundation construction units and supervision units. After the measured road elevation is inconsistent, the four-line diagram provided by the plan is inconsistent with the actual surveying and mapping data of the parcel, and then it is reflected to the design institute, which adjusts the overall evaluation with the actual measurement data. Draft supplementary agreement and earthwork leveling contract between supervision unit and pile foundation unit. Cooperation-application for construction permit. In the early stage of bidding, I conducted a comprehensive understanding and research on the bidding work and became familiar with the policies and regulations of key links. Solve the water and electricity problems in the construction site. Due to the tight working time and heavy workload of site leveling, I arranged all the work of site earthwork leveling at one time, adopted the method of stubble pressing, interlocking and overall promotion, and timely connected the upper and lower links to ensure the normal development of pile foundation construction. In the process of pile foundation construction, due to the complex geological conditions, the design length of pipe pile does not meet the actual geological requirements. I organized personnel to conduct geological exploration again, which overcame the difficulties of water cut, power cut and temporary construction, assisted the exploration unit to complete the geological exploration task on time, and ensured the smooth progress of pile foundation work. Due to the tight construction period and the heavy tasks of foundation pit support and earthwork, the construction unit has to carry out a lot of night construction besides daytime construction. In order to ensure the construction progress, winter, rainy days and other unfavorable natural factors, I often go to the site to track the night construction, day and night tracking, which creates conditions for the construction unit to coordinate and solve the problems encountered at any time, and also creates conditions for the main project of earthwork construction period to start ahead of schedule. Because of the complexity involved in the construction, I haven't had a day off since the project started. I have to leave the construction site after 9: 00 every night, giving up the opportunity to rest on holidays, and always insisting on timely coordination and solving various problems encountered in the construction.

Second, strengthen self-study and improve professional level.

After years of work experience, I feel a heavy burden on myself, and I deeply feel the importance of learning. Only by constantly maintaining and improving one's work and study ability can one have sustained fighting capacity and work innovation ability. Over the past year, I have worked hard to broaden my personal knowledge, strengthen my study of real estate specialty and related legal knowledge, strengthen my understanding of the context and trend of real estate development, as well as the surrounding environment and the development of the same industry, deeply understand the overall planning of the company and know all kinds of situations of the company like the back of my hand. In the coming year, I will continue to take study as an important work plan to improve my practical working ability and professional quality, adapt to the development of the times and the company, and contribute my due strength to the development of the company.

Third, grasp the quality of the project.

-The project is a key project, so it is particularly important to pay attention to the quality of the project. In management, I always adhere to the concept of "carving by digging", comprehensively implement refined and scientific management, conscientiously implement various measures to create excellence, conscientiously do a good job in every process, do a good job in every link, and strictly supervise and control. While assisting the engineering supervision company, it has gradually formed its own engineering quality supervision system. Give priority to supervision, supplemented by self-construction, and strive to complete the project.

Four. Completion-foundation works

In order to successfully complete the main project of the project, especially the basement and waterproof layer construction in the main construction stage, considering the rainy weather, the company's capital utilization rate is improved and the company's resources are saved. For example, in the process of engineering construction, using methods such as small well dewatering can overcome difficulties such as high groundwater level and rainy season construction, and successfully complete the foundation project. Looking back on the work in the past year, although some achievements have been made and affirmed by the company leaders, these achievements can not be achieved without the support and help of the company leaders, the encouragement and help of various brother departments and the efforts of the engineering team to sum up the achievements. I naturally see many shortcomings, such as strengthening the on-site management experience and better improving the company's resource utilization. The summary of the results only makes me face the actual work situation more objectively, and also encourages me and my team members to make persistent efforts to achieve better work results next year and make progress and growth together with the company.

Under the correct leadership of the district committee and government, under the care and guidance of the Municipal Agriculture Committee, and through the concerted efforts of Qi Xin, a cadre of agriculture and animal husbandry system in the whole region, up to now, there has not been a quality and safety accident of agricultural products in our region. The specific work is summarized as follows:

I. Main work carried out

(1) Strengthen organizational leadership and implement work responsibilities.

1, the safety leading group of agricultural materials (including quality and safety of agricultural products) was adjusted in time, with the director as the group leader, the leaders in charge as the deputy group leader, and the heads of relevant departments as members, and the working mechanism of ensuring safety by taking towns as the belt, earnestly strengthening work responsibilities, clarifying work priorities, and carrying out special governance actions closely around the quality and safety of agricultural products. 2. Implement the work responsibility system at different levels: First, sign the responsibility book of agricultural product quality and safety with the agricultural service centers in various towns; Second, all agricultural production, management and large-scale agricultural producers are required to sign a commitment letter for safety production and management above 164.

(2) Development of supervision work.

1. Strengthen the supervision of agricultural inputs to ensure the quality and safety of agricultural products from the source.

First, the special rectification of agricultural products during the "two festivals" was organized. * * * More than 38 law enforcement inspectors were dispatched, 44 large-scale agricultural producers were inspected, 8 agricultural production units were inspected, and 26 agricultural business households were inspected.

The second is to carry out the spring agricultural market rectification. Combined with the actual situation in our region, our bureau made arrangements for this work years ago, requiring the quality and safety supervision stations of agricultural products in towns to strengthen market supervision according to the principle of territorial management, and dispatched 55 law enforcement inspectors to inspect agricultural production and business units 102 times.

Third, the management of slaughter and quarantine has been strengthened. 100% designated slaughterhouses (points) signed a safety commitment letter, inspected slaughterhouses (points) for 23 times, strictly closed the entry and exit (slaughter and breeding) sites, did a good job of verification and identification, and handled unqualified quarantine certificates and ear tags in strict accordance with relevant requirements; Further strengthen the detection of "Clenbuterol" for live pigs (slaughter and breeding), and carry out urine sample detection for live pigs at 5%;

Fourth, in strict accordance with the requirements of "four different treatments", dead pigs are not allowed to be slaughtered, eaten, sold or transported, and treated harmlessly on the spot. * * * The number of dead pigs and their products treated harmlessly is equivalent to 52.

3. Intensify sampling inspection to ensure the quality and safety of listed agricultural products.

Take testing as a means to increase the intensity of sampling inspection. A total of 26 batches of agricultural products were supervised and sampled, including 6 batches of vegetables, 2 batches of chicken, 2 batches of eggs and 0/0 batch of pork. Completed "Clenbuterol" detection 1 120 batches, and completed more than 370 batches of rapid detection of pesticide residues in towns and villages.

4. Intensify publicity and create a good social atmosphere.

Taking publicity and training as the starting point, we will effectively increase publicity and training. Carry out a series of centralized publicity activities for 9 times, such as "Go to the countryside with agricultural materials at ease", "3. 15", "Centralized publicity of fishing ban in spring", "Protection of intellectual property rights", "Publicity of seed law", "Publicity of pesticide management regulations" and "Publicity of agricultural technology"; Organized and carried out centralized training courses on quality and safety of agricultural products, veterinary drug management, pesticide management and meat quality and safety *** 12, trained more than 300 relevant personnel, distributed more than 3000 publicity materials on prohibition of agricultural and veterinary drugs and related laws and regulations 13000, and distributed publicity notices 120.

5, solidly promote the "three products and one standard" certification and declaration of agricultural products.

44 applications for pollution-free agricultural products certification were completed, 3 applications for pollution-free agricultural products certification were completed, 2 applications for green agricultural products certification were completed, and 2 applications for organic agricultural products certification were completed (1 completed soil and water sampling, 1 basically completed data submission).

6. Carry out work supervision and regular meetings in a down-to-earth manner.

Combined with the actual situation, our bureau will effectively move the daily supervision to the town agricultural product quality supervision station, strengthen the work supervision on the basis of strengthening the training of safety supervision personnel in the town, and organize relevant personnel to carry out work supervision regularly every quarter; Carry out regular work meetings in the first and second quarters in a down-to-earth manner, effectively implement the solutions and opinions on outstanding problems raised by agricultural service centers in various towns in daily supervision through exchanges, and ensure that the work is implemented. At the same time, the township supervision stations are required to do a good job in the practical problems found in the supervision, strengthen the review, and ensure that the responsible subjects are rectified in place. 7. Strengthen administrative law enforcement.

In order to effectively improve the quality of handling cases, standardize agricultural administrative law enforcement behavior, and improve the ability and level of law enforcement personnel, this year, our bureau adopted the way of purchasing services from the public and hired professional lawyers to provide special services for the authenticity, legality and relevance of case evidence materials and law enforcement documents. At present, this service has been started. In the past six months, the public has dealt with three cases of suspected agricultural administrative violations, and these cases are under trial.

Second, the second half of the work plan

1, promote the construction of demonstration sites of pollution-free, green and organic agricultural products, strive for financial support, and improve the enthusiasm of large-scale production declaration of agricultural products.

2. Further intensify the training and publicity work, enhance the responsibility consciousness, safety consciousness and scientific production level of producers, and promote the safe production of agricultural products.

3, strengthen the supervision of township agricultural products quality and safety institutions, take online supervision and testing, timely tracing the disposal of unqualified products and combined with quarterly work supervision, etc., to promote the relevant responsible units to perform their supervisory duties and ensure the quality and safety of agricultural products in the region.

4. Do a good job in docking the quality and safety of agricultural products in the new five towns, strive to ensure that the safety management is not out of line, ensure the quality and safety of agricultural products, and ensure the quality and safety of agricultural products.

First of all, I am very grateful to the company leaders for trusting me and giving me the opportunity to express myself and improve myself. Thank the leaders of the unit and colleagues around me for their guidance and help in my work. The relaxed and harmonious working atmosphere of the unit and the United and pragmatic cultural background helped me to integrate into the big family of the company and played a great role in my work. It is a great honor to join this long-term team responsible for enterprise development. Now I will make the following summary report on my internship, the shortcomings of my current work and my work plan. First of all, my main gains and preliminary skills in my work:

1, basic understanding of product production process; Process arrangement, personnel status, grouping, division of labor methods, and job responsibilities.

2. Have a preliminary understanding of product technical standards; National and industry standards, some basic information about the company's industry.

3. Make a clear distinction according to the requirements of the executive company and the positioning of product grades in the market and customers.

4, mastered the product quality requirements and other related work knowledge; And have the job skills required for product quality audit and quality control positions. Can carry out reasonable process quality control according to customer's requirements for product performance. And can make correct cause analysis and judgment on the problems in the process of quality control, and deal with the process quality accidents in time; So as to guide the implementation of inspection and test.

2. Through this period of work, I found that there are the following deficiencies and areas worthy of improvement in my current work:

1, inspection documents; There is no written inspection work instruction. At present, production line inspectors only carry out inspection according to the items on the inspection list. Most of the ways and means come from past experience and mutual information transmission. Such an operation will lead to the fragmented inspection, which is not conducive to the management of inspectors. I plan to draft the inspection operation guidance document used by this department for production after further mastering the detailed information.

2. There are no detailed data and records about the actual quality of the production process; Statistics without data and records are not conducive to analysis, guidance and control of production. I will plan to establish complete record control for the first, second and last inspection of the process in my future work. Strive to carry out and implement this work, strengthen supervision and inspection, and ensure that the quality control work is implemented.

3. At this stage, our inspectors don't have a good understanding of quality work, and some new employees didn't receive corresponding education and training when they joined the job. So that some inspectors can't complete product inspection and product performance test alone.

I plan to suggest that this department organize relevant education and training (such as AQL application, mechanical knowledge, hardware knowledge, process equipment cognition, tool use, instrument knowledge, mechanical drawing recognition, quality concept, etc.). ), and combined with the skill status for assessment and appraisal.

4. Management of nonconforming products; At present, there is no detailed record or accounting system for the management of nonconforming products, which is not conducive to the development of quality control, and often causes the same problem to recur, which can not fundamentally solve the generation of nonconforming products.