A factory audit is a thorough on-site evaluation of a manufacturing facility to assess its capability and conditions before you start or deepen a business relationship. It typically reviews areas like quality management systems, production capacity, equipment, worker skills, workplace safety, and social compliance. You should conduct a factory audit before finalizing a new supplier (to ensure they can meet your requirements) and periodically with existing suppliers (to ensure standards are maintained or to qualify them for new product lines). Audits are also advisable if you’ve experienced quality issues and need to root cause problems at the factory. Audits can be done by your own team, third-party inspectors, or firms like GP Consulting. The goal is to verify that the supplier “walks the talk” – that they have the infrastructure and processes in place to consistently deliver the quality and quantity you need.
AQL (Acceptable Quality Limit) is a statistical measurement of the maximum number of defective units, beyond which a batch is rejected during inspection. In practice, when you inspect a sample of a lot, AQL helps determine the sample size and the threshold for acceptance vs. rejection. For example, an AQL of 1.0% for major defects means that in a sample, if the percentage of units with major defects exceeds 1.0%, the entire lot should be rejected or subjected to 100% inspection. International standards (like ISO 2859) provide AQL tables that indicate how many samples to inspect based on lot size and the AQL level. Companies set different AQLs for critical, major, and minor defects based on customer expectations and product type. In short, AQL is a key part of quality control sampling plans, balancing inspection effort and risk: it provides confidence that a batch meets quality levels without checking every single item.
Ensuring quality with overseas suppliers involves setting clear expectations and verifying compliance at multiple stages:
Quality Assurance and Quality Control are related but distinct concepts in ensuring product quality:
GP Consulting provides comprehensive quality control support as part of our sourcing and supply chain services. Our approach includes: