What is difference between QA & QC?

[vishwanathoils]

What is difference between QA & QC?

[Sophiaparker]

Although QA and QC are closely related concepts, and are both aspects of quality management, they are fundamentally different in their focus: QC is used to verify the quality of the output; QA is the process of managing for quality.

[Akshay_M]

QA ensures that the process is delivered correctly and produces predictable results, while QC ensures that the product meets the specified set of requirements. Thus, QA is wider than quality control and makes it possible to guarantee the quality of work (subject to confirmation by quality control data).

[dazzle]

QA primarily focuses on the processes and procedures that improve quality, including training, documentation, monitoring and audits. QC focuses on the product to find defects that remain after development. QC professionals find these issues in a variety of ways, including software testing and beta or canary testing

[davidsmith]

QA - Quality assurance is defined as "a component of quality management aimed at ensuring that quality criteria are met." Internally, quality assurance provides assurance to management, and externally, it provides assurance to customers, government agencies, regulators, certifiers, and third parties. "All the planned and systematic activities conducted inside the quality system that can be proved to provide confidence that a product or service will fulfil quality requirements," says another definition.

QC - Quality control is defined as "a component of quality management aimed at ensuring that quality criteria are met." While quality assurance is concerned with how a process or a product is carried out, quality control is mainly concerned with the inspection part of quality management. "The operational strategies and activities used to fulfill quality requirements," says another description.

[dazzle]

QC is used to verify the quality of the output; QA is the process of managing for quality.

[myresellerhome]

Quality assurance (QA) and quality control (QC) are related but distinct disciplines within the field of quality management. QA is focused on identifying and preventing defects before they cause problems, while QC focuses on correcting defects when they do occur.
One of the key differences between QA and QC is that QA is typically used to determine the quality of a product before it’s released to the public, while QC is used after a product has been released to the public and may involve additional steps, such as re-testing or auditing. Additionally, QA typically uses manual methods such as inspections and audits, while QC may use more automated methods.

[webhostingworld]

Quality assurance (QA) is largely concerned with the processes and procedures that are used to enhance quality, such as training, documenting, monitoring, and auditing. Quality control (QC) focuses on the product in order to identify problems that have remained after development. These flaws are discovered in a number of methods by quality assurance specialists, including software testing and beta or canary testing.

[dazzle]

QA prevents the occurrence of issues, bugs, or defects in the system. Thus, it is more managerial in nature. QC identifies the issues, bugs, or defects in the system, and then works towards fixing them. Thus, it is more corrective in nature.