Many people confuse QA and QC jobs, because both these fields are quality management, but the nature of the work, the job description of these two fields are completely different. However, depending on the structure of the departments of different companies, QA and QC can be combined or cooperated separately. Let's join Giaiphapdonggoi.net to find out what QC is? What is QA? Please!
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1. What is QC?
1.1. Concept
QC stands for Quality control which means quality control is the process that businesses use to ensure that a product or service complies with a predefined set of quality standards or meets requirements. customer or customer request. Quality control often requires businesses to create an environment in which employees and management strive to improve. This requires extensive training, creating standards to measure product or service quality, and testing to check for any significant variation in quality.
What is QC?
1.2. The importance of QC
There are many reasons why quality control is important:
Encourage quality consciousness: Quality control encourages employees to be quality conscious throughout the production process, which can help a company's ability to achieve the desired level of quality each time.
Reduce production costs: The process used for quality control checks the production of items that are not up to quality standards, corrects any problems, and reduces production costs.
Increased Consumer Satisfaction: Quality control ensures that customers receive products that are free from defects or defects, which increases overall customer satisfaction.
Increased goodwill: Producing high-quality products that meet all of an organization's quality control requirements means that those products will consistently satisfy customer needs, enhancing the reputation of the company. enterprise.
Higher employee morale: When employees realize they are producing high-quality products that deliver value to consumers, it can improve overall company morale.
Better manufacturing methods: Quality control processes streamline and improve manufacturing processes, which means improved methods and designs and often higher productivity.
Increase sales: Consistent quality control can help a company develop a reputation for quality, which in turn can attract new customers and increase sales.
Efficient use of resources: Quality control ensures that a company is using resources efficiently by minimizing product and material waste and increasing efficiency.
The importance of QC
1.3. Quality control process
Companies typically follow a certain process to ensure quality control, which includes:
Establish test standards
To implement a quality control program, a company must first decide what standards it wants to meet. Next, it must be determined the extent of the action to be performed. For example, the team must decide how many samples will be taken and tested.
Check out raw materials and different stages
Quality control usually involves checking every step in a company's manufacturing process. QC staff can start by testing the raw materials used to make a product and then experiment at different stages in the manufacturing process to determine where there are any problems. going on.
Troubleshoot
Staff will then correct the problems to prevent them from recurring in the future. The exact quality control a company employs depends on the industry and the product.
In food production, for example, the company's QC team performs microbiological testing to ensure that the finished product does not cause illness in the consumer. They may also perform quality control of the food in its packaging to ensure it is visually appealing. However, in the car manufacturing industry, quality control can focus on how different parts interact and work together.
Collect data and decide
Once problems are found, real-world data must be collected and reported to management. Finally, corrective action must be taken. For example, the company may decide to repair any remaining defective units or eliminate them.
If there are too many defective products, a company must establish a plan to improve the production process, or if the problem is with the supply being used, it must purchase raw materials from elsewhere. Finally, quality control methods must be continuously monitored for new signs of problems.
2. What is QA?
2.1. Concept
What is QA?
QA stands for Quality
assurance means quality assurance is any systematic process of determining whether a product or service meets specified requirements.
QA establishes and maintains requirements set forth to develop or manufacture reliable products. The quality assurance system is meant to increase customer confidence and company reputation, while improving work processes and efficiency, and allowing the company to better compete with others.
ISO (International Organization for Standardization) standards are a driving force behind QA practice and the mapping of processes used to perform QA. QA is often associated with the international standard ISO 9000. Many companies use ISO 9000 to ensure that their quality assurance system is up and running.
The concept of QA as a formal practice started in the manufacturing industry, and since then it has spread to most industries, including software development.
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2.2. The importance of QA
The importance of QA
Quality assurance helps a company create products and services that meet customer needs, expectations and requirements. It delivers high-quality product services that create trust and loyalty with customers. Standards and processes are defined by a quality assurance program that helps prevent product defects before they arise.
2.3. QA methods
Quality assurance uses one of three methods:
Failure testing, continuously testing a product to determine if it is broken or not. For physical products that need to withstand stress, this may involve testing the product under heat, pressure or vibration. For software products, error testing may involve placing the software under high load or usage conditions.
Statistical process control (SPC), a method based on objective and analytical data and developed by Walter Shewhart at the Western Electric Company and Bell Telephone Laboratories in the 1920s and 1930s. This methodology uses statistical methods to manage and control the production of products.
Total quality management (TQM), which applies quantitative methods as the basis for continuous improvement. TQM relies on facts, data, and analytics to support product planning and performance reviews.
3. QA vs QC
QA vs QC
Some people may confuse quality assurance with quality control (QC). Although the two concepts have similarities, there are important differences between them.
In fact, QA provides overall guidelines that are used everywhere, and QC is a production-focused process - for things like testing. QA is any systematic process to ensure a product meets specific requirements, while QC deals with other issues, such as individual testing or defects.
In terms of software development, QA practice seeks to prevent code or product from malfunctioning, while QC performs testing and troubleshooting and fixes the code.
Thus, QA and QC are two related but completely separate areas of expertise, QA encompasses the overall quality system, related to the whole and deeply to all parts of the organization. For QC more specifically checking the specific quality of the finished product or process, QC is under the control of QA.
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