Using advanced statistical models, we can identify, correct and / or improve those factors that influence our productivity, increase quality, and apply continuous improvement of processes.
We start this article asking the simplest (not because of its response but formulation) and with more probabilities that the readers have faced along their lives: What is quality?
Depending on the type of business, its definition will have a different focus. In production, we could define quality as the degree to which a product conforms to the desired specifications on its characteristics and in a way that meets customer expectations. Therefore, quality is somewhat subjective, which is why companies usually assume that, as they do not have control of all the variables that influence production, process management is not worth. But it is the opposite.
Should we leave to chance what is within our reach to correct and improve? There are multiple factors that intervene in production process and that we can observe and supervise to achieve continuous improvement: from machines used to staff efficiency, for example.
However, we should bear in mind that quality management does not refer only to quality assurance, but also to guarantee the consistency of all final products with each other. This means, all of them meet the same requirements to the same extent.
To measure quality, it is a must to implement controls. Quality control is the process that ensures standardization, reliability and manufacturability of a product or service. Thus, there are specialized statistical tools and methods for the inspection, identification, and control of processes. Using them, we can have more information and a deeper understanding so we can make decisions that will increase quality and, therefore, productivity and profitability.
In brief, we could say that the main advantages of quality control are the reduction in the number of:
- Inspections and supervisions
- Nonconforming units (that must be discarded and / or reprocessed)
And a better use of:
- Human resources
- And so on
But, as we mentioned at the beginning of the article, these advantages vary depending on the business model.