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What Is Quality Control? What Are The Types Of Quality Control?

Referencing Styles : APA | Pages : 1

What is Quality Control?

The process of evaluating quality of various factors in the production of products and service offerings of entities is known as quality control. The definition by ISO 9000 regarding quality control is, "A part of quality management focused on fulfilling quality requirements".  The process of quality control focuses on various aspects, job management, criteria regarding integrity and performance, records of entities. Quality control also directs its focus towards the assessment of skills, knowledge, qualification and experiences of a specific functional area of organizations. Quality control assesses confidence, integrity, motivation criteria and organization culture. Quality control is considered as the process that ensures quality of product offerings by maintaining or improving the operational process in association with zero or minimized error. The environment of perfection is constructed in the common grounds with the employees and management of the organization for the facilitation of quality control. Quality control process is executed by constructing set benchmarks for quality of the product or service offerings of organization. Testing the offerings under structured statistical standards facilitates quality control.  Formation of well-structured controls in the area of quality control is considered as the major function of quality control. The controls or constraints enable the standardization of response and production process regarding quality concerns. Testing units for the purpose of identifying the alignment of final specifications with the set benchmark will be included in the process of quality control.  Quality control enables the understanding regarding the identification of corrective actions in production or operational process. Quality controls criteria and procedure helps in addressing the demands of the target customers. The procedure of quality control involves all the steps of production process. The first step is to test the procured raw materials followed by testing elements from each operational line to the final produced product. The operational issues or poor quality raw materials can be identified in the quality control. The process of testing enables the identification of the concerns and issues. Identification of issues can help with adopting corrective actions for preventing deviation from quality standard.

Quality control is executed by the inspectors, commonly known as Quality inspectors. The role of Quality inspector is to assess the quality of the product in each step of production process by ensuring the security of consumer expectations and preferences. Quality control inspectors have to the authority of rejecting products, tagging for changes or repairs in case of defects. In the procedure of understanding the alignment between the set standards and the actual product. Inspection involves activities like assessing, examining, measuring and testing the features and value offerings of the product as per product planning. Inspection involves comparison between the specified and actual characteristics of products. The inspector of quality control ensures the effective performance of the manufacturing or operational department for accomplishing the standardized product values. The recommendations of the quality control inspectors are based on the benefits, which are planned for the product to offer to the target customers from the documented standards.

What are the Types of Quality Control?

The types of tools used for Quality control are as follows:

  • Checklists: It helps in aligning the set standards with the actual manufacturing process.
  • Control chart: Control chart enables the real time problem identification process-assessing outcome in every step of production.
  • Fishbone diagram: This tool helps in identifying the main causes of problems in production process by analyzing the effectiveness of machines, materials and manpower.
  • Pareto chart: The identification of the reasons behind quality issues and direct towards ways of improvement.
  • Stratification: This tool helps in identifying patterns of operational or manufacturing issues for the understanding the discrepancies in planned and actual data.
  • Scatter diagram: The relationship between the two variables in regards to the expected and actual production outcome.
  • Histogram: This tool helps in identifying the frequency distribution for understanding the frequency of defects.

The two types of Quality control procedure are:

Internal Quality control: Setting quality standards in-house for assessing the manufacturing and operational system is known as internal quality control. In internal quality control, the analysis process may involve routine check-up, assessment of employees’ efficiency and establishing standards on daily activities. Management is responsible for assessing the execution of quality control in case of the internal quality control.

External Quality control: External quality control tends to depend on external organization or agencies for assessing quality standards of the products as per the set standards. For instance, in food producing business, the quality can be assessed by external quality control bodies, namely, quality inspectors. Quality control in food businesses can be appointed by the business owner or can be planned from food inspecting organization for the purpose of ensuring quality services for customers.

How a company may do Quality Control? 

The phases involved in quality control for a company are as follows:

  • Organizational goals: The knowledge about organizational goals will enable the process of establishing standards and objectives of quality control. Identification of the organizational goals for understanding the vision, mission and values that the company wants to reflect through their product or service offerings.
  • Identification of the critical success factors- The critical success factors or key performance indicators can be identified by understanding the factors involved in quality assurance system of a company. The factors can be technical assistance, financial security, value of product, production process and techniques, customer support and employee contribution.
  • Identification of external and internal customers: Understanding the target customers by understanding the preferences and needs of both internal and external customers is very important. The external customers are the target consumer group and the internal customers are the suppliers, vendors and employees.
  • Customer feedback: The information regarding customer preferences, need and requirements. The survey can help in shaping the quality control standards.
  • Implementing continuous developments: Establishing a continual improvement process will allow the company to meet the customer preferences in accordance with the data received from feedback.
  • Quality management software: Allocating quality management software for identifying and rectifying the causes of problems in the operational process.
  • Measuring results: Measuring results for understanding the needs and preferences of the customers for accomplishing the ultimate goals of company growth and development.


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