Overview about Quality Control


Quality Control is an applied system that ensures the maintenance of standards. The methods involved in Quality Control are implemented with manufactured products and the overall process. One major aspect relies upon the establishment of well defined criteria.

Businesses and corporations worldwide utilize Quality Control. A product expected for foreign trade should meet or exceed its specifications. Quality Control measures are enacted to motivate a company’s management and employees aim for product perfection.

How does Quality Control Work?

The primary objective of quality control is the maintenance of high quality. The attributes of a final product are compared to its given manufacturing specifications. If defects do exist, improvements with the creative process are assigned by quality specialists.

Quality Control is performed by several entities worldwide. For example, the company called Global Inspection Managing, a Quality Control in Pakistan expertises on conducting quality control procedures. They have built a solid process that checks and furnishes any manufacturing imperfections done by a production-centric company.

One major aspect of Quality Control is to instill a sense of discipline with both management and production personnel. It helps in making a strict environment that aims for the creation of great products. In turn, excellently manufactured products reflect a very efficient company, and yields more profits and revenue.

The methods of Quality Control involve surprise visits by specialized teams. These groups randomly check out any viable products manufactured by a company. If defects and specifications are detected – suggestions, ideas, and corrections to lessen their future existence are submitted to the higher management levels.

Quality Control procedures also expose flaws with existing manufacturing strategies. All the errors discovered may be subject to improvement and correction of creative sequences. Employees that perform each manufacturing step are also given adequate training. Error reduction also entails that every personnel assigned to a task have proper preparation and knowledge.

Quality Control Techniques

Several methods and techniques are set to ensure the proper application of Quality Control. The Quality Control used in any business is based upon their primary product or service. Solutions are also described in detail to mitigate the appearance of errors along the way. There are different quality control methods per industry.


Inspection is the typical technique in Quality Control checks. Quality Control teams and specialists conduct periodic inspections of a product. Inspections are also applicable with a company’s manufacturing methods, sequences, designs, and services.

●     Product Inspection

Product Inspection is based upon the final outcome of a product. A sample of a manufactured product is taken from the production line. It is then compared through thorough inspection procedures. The performance and attributes of the product are also checked for malfunctions and defects.

●     Process Inspection

Process Inspection takes the Quality Control team to the production floor. The specialists analyze the assembly or manufacturing process of a product. Be it a machine, food, or supplementary material. The raw materials and equipment are also examined for the proper assembly of an object.

Inspection Analysis

After inspection techniques are accomplished, a detailed analysis follows suit. The method is based upon the final results obtained in actual inspections. The results coming from the inspection analysis are valuable to an entrepreneur or company. It indicates which sectors within the manufacturing process or product traits yield errors. Improvements can be applied.

Statistical Quality Control

Statistical Quality Control is considered a rather advanced methodology. It requires a numerical discipline and approach of detecting errors and malfunctions. The results obtained stems from a variety of calculations, equations, and occurring statistics. Probability calculations, scientific sampling, and various statistical references are used with the method.

●     Sample Analysis

Sample analysis requires the extraction and identification of units to be analyzed. A few sample products are chosen from the same batch of products. These samples are then analyzed to determine defects, malfunctions, and exactness of traits based upon its standard specifications.

●     Control Chart

Control charts are created which are based upon the major factors involved in manufacturing processes. Characteristics and attributes of test samples are also represented in chart form. This method results in whole and quantified data that summarizes the improvements required.

●     Corrective Measures

The results from Quality Control Charts assists management personnel with the identification of troubled areas. Ideas and solutions are therefore engineered for the general improvement or enhancement of the entire manufacturing process. It is also applicable to improve the existing traits of a manufactured product.


Quality Control methods are always valuable to any manufacturing company. The primary objective of quality control is to maintain the quality of a product in relation to its standard specifications. There are different quality control techniques that companies can implement.


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