1, QA's role: A is directly responsible to the senior manager, but needs to report to the project manager in business, and belongs to the project member. As shown in figure 1. The advantage of this organizational structure is that QA can be easily integrated into the project team, and it is easy to find substantive problems and solve them quickly. The disadvantage is that each functional department is relatively independent, and there is a lack of exchange and sharing of experience between departments, and there may be repeated investment in process, method and tool research.

2. The role of 2.QC: it is conducive to developing intellectual resources, giving play to people's potential and improving people's quality; Conducive to preventing quality problems and improving quality; Conducive to the realization of full participation in management; It is conducive to improving the relationship between people and enhancing the spirit of unity and cooperation; Conducive to improving and strengthening management and improving management level; Conducive to improving customer satisfaction.

Second, the overview of the two is different:

1.QA overview: QA means "quality assurance" in Chinese, and its definition in ISO 8402: 1994 is "all planned and systematic activities implemented in the quality management system, and verified as required to provide sufficient trust to show that the entity can meet the quality requirements".

Some organizations that implement ISO9000 will set up such departments or posts to be responsible for the quality assurance functions required by ISO9000 standards, and the personnel who hold such jobs are called QA personnel.

2.QC overview: QC group (Chinese translation: quality control circle) is a small circle group composed of people with the same, similar or complementary workplaces. They are all cooperation, brainstorming and solving problems and topics in the workplace, management and culture according to certain activity procedures.

Third, the characteristics of the two are different:

Features of 1.QA: To establish an organization, the first thing to consider is its organizational structure. Organizational structure not only determines the responsibilities of the post to a great extent, but also determines how to allocate resources. According to the practice of most domestic enterprises, QA organizational structure can be divided into three categories: functional structure, matrix structure and flexible structure combining the two.

2. Characteristics of QC: On the basis of employees' voluntary participation, QC team implements self-management, self-education, mutual inspiration and common improvement, and gives full play to the intelligence, enthusiasm and creativity of team members.

QC team is an effective form to attract the broad masses of employees to actively participate in quality management, including not only leaders, technicians and managers, but also front-line operators in production and service. The broad masses of workers learn technology and academic management in QC group activities, and analyze and solve problems together.

Baidu encyclopedia -QA (quality assurance)

Baidu encyclopedia -QC team