Control Quality Process

Quality control is a quality management process in which we determine whether quality requirements are met in a product-oriented manner by using statistical tools and techniques and take the necessary actions by following the results we have obtained as a part of the delivery control system.

Quality control processes determine if defects in the process or product quality are existent before product delivery is made to the customer. In this aspect, it has the potential to cause a large workload and additional costs in the future, detecting quality defects early and saving time, money, and resources.

Quality control activities determine why products that fail to meet quality requirements are manufactured in this way, and corrective and preventive actions are recommended so that this does not happen and does not happen again in the future. Deliveries produced within the scope of the project are audited and verified deliveries are revealed in this process. These verified deliveries are evaluated in the scope approval process to obtain the customer's approval.

The control quality process is a part of:

In PMBOK 7 essentials of this process is conducted as part of: 
This process is conducted continuously throughout the project.

Outputs Created in Control Quality Process

  • Work performance information: It is a natural output of all measurement, monitoring and controlling processes. 
  • Quality control measurements: This provides feedback to the manage quality process.
  • Verified deliverables: This is the main output of the process. This way we make sure before customer approval that our deliverables do not have quality defects.
  • Change requests: If we detect points that don't go well, a change request always is a good idea.

Inputs of Control Quality Process

  • Quality management plan: This plan will guide us on how to conduct, quality control process, which metrics we will use.
  • Test and evaluation documents: This input is used to see the achievement of quality objectives. 
  • Approved change requests: The impact of approved changes will be controlled as a part of this process.
  • Deliverables: This input is used to obtain verified deliveries output at the end of the process.
  • Lessons learned register: Lessons
  • Quality metrics: These metrics are an important input that is essential to measure the quality requirements of products.
  • Work performance data: This will be transformed into work performance information at the end of the process.
  • Enterprise environmental factors: EEF's for this process includes, project management information system (PMIS), regulations of the government and specific sectoral guidelines, policies and procedure.
  • Organizational process assets: Quality standards of the organization, organizational quality policies, templates, checklists, check sheets used in the organization are examples of OPA's.

Tools & Techniques

  • Questionnaires and surveys: This tool is used by preparing sets of questions designed to quickly gather information from a large number of respondents. It is used as a data-gathering tool here in quality-related issues.
  • Performance reviews: This analysis consist of measuring and comparing actual project results to the planned. Therefore we have an idea about the performance of the project.
  • Histograms: A bar chart shows the frequencies of quality-related issues.
  • Scatter diagrams: Identifies the relationship between two variables. 
  • Meetings: 
  • Root cause analysis
  • Inspection
  • Testing/product evaluations
  • Checklists
  • Check sheets
  • Statistical sampling
  • Cause-and-effect diagrams
  • Control charts
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