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What Makes Quality Inspection Different from Quality Control?

There are many ways that quality inspection or QI and Quality Control or QC differ, even though it is very subtle. These are terms that are used in manufacturing but other business sectors benefit from it as well.

Quality inspection is performed at the end of every manufacturing process. What trained inspectors use for QI are testing, tools, and standards of very demanding customers. QI identifies issues with products which they report to the accountable managers so that they can advise them on how to solve the issue.

On the other hand, quality control creates products which are subject to QI. IN QC, it is during the development and manufacturing process that errors and issues are identified and corrected. QC will be very successful if the company is focused on providing quality products as their core value and goal.

QI and QC are not simple processes. In QI the finished product is inspected. It is an inspector, a manager, a third-party testing service, or the customers who do QI.

For food processing facilities, for example, poor quality items are not allowed to reach the market so they are set aside by QI. If goods are rejected, then some of them are recycled. There are checklists, visual guides, chemical testing, and other tools used to sort poor quality products from good products in a fast way.

In QC, poor quality products are prevented from being produced. During the process of QC, it already removes items that are not good so it does not reach QI any more. The main focus of QC is to find and fix sources of error, malfunction, or weakness.

Feeback is very important and so QI can be eliminated by correcting things at the point of failure. In order to find problems and repair or reconfigure the process, there is inspection done of all process points. Tools, talent, materials, machines, or even temperature and lighting at the work station are the sources of problems. In order for QC to perform well, there needs to be high-volume and high-quality feedback from QI.

Before the functions of QC and QI are isolated by most businesses. In order to help make businesses free of error, there is already more interaction and cooperation where QI feed QC with important data.

QI is done before shipping the products. Shipment delays can be reduced if QI will only test a segment of the produced products. And they assume that this represents a statistically-sound sample. This sample is checked for workmanship, safety, functionality, and performance before delivery. Even end uses of the product are involved in inspecting when it arrives in their location using their own set of standards. The management of the supply chain is improved through customer feedback. Business owners must weigh the cost of inspection against the value of the produced well. Take SafetyChain, this food quality management software will manage the costs as well as the process.

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