The primary goal of quality control is to ensure that products or services meet customer requirements and expectations, leading to customer satisfaction and loyalty.

ISO 9001 is an international standard that provides a framework for quality management systems, helping organizations to improve their overall quality performance and customer satisfaction.

Quality inspection aims to identify defective products or non-conformities to prevent them from reaching customers and ensure that only products meeting specifications are released.

Control charts are statistical tools used to monitor and control processes by plotting data points over time. They help identify variations and trends, enabling timely interventions to maintain process stability and product quality.

Quality audits aim to assess an organization's compliance with quality standards, identify areas for improvement, and verify the effectiveness of quality control systems to ensure that products and services meet customer requirements.

Visual inspection is a quality control method where products are examined visually to identify defects or non-conformities that may affect their functionality or appearance.

In service industries, quality control primarily focuses on ensuring customer satisfaction by delivering services that meet or exceed customer expectations, leading to customer loyalty and positive口碑.

Failure mode and effects analysis (FMEA) is a quality management tool used to identify potential failure modes, their causes, and their effects on a product or system, enabling proactive measures to prevent or mitigate failures.

A quality control plan outlines the procedures, acceptance criteria, and critical quality characteristics for inspecting and evaluating products or services to ensure they meet customer requirements and specifications.

Process capability analysis (Cp, Cpk) is a statistical method used to estimate the capability of a process to meet specifications by comparing the process variation to the specification limits.

Quality assurance focuses on preventing defects through proactive measures, while quality control focuses on identifying and correcting defects through reactive measures. Quality assurance is typically performed by upper management to establish quality policies and procedures, while quality control is typically performed by production personnel to implement and monitor these procedures.

Total quality management (TQM) is a quality management philosophy that emphasizes continuous improvement and customer focus, aiming to deliver products and services that meet or exceed customer expectations.

Quality control laboratories are equipped to conduct product testing and analysis, calibrate and maintain inspection equipment, and develop and validate test methods to ensure the accuracy and reliability of quality control processes.

Sample size determination is a statistical method used to calculate the minimum sample size required to achieve a desired level of confidence and precision in a quality inspection, ensuring that the sample is representative of the entire population.

Statistical process control (SPC) aims to identify and eliminate assignable causes of variation, maintain process stability and reduce variability, and ultimately improve product quality and consistency by monitoring and controlling key process parameters.