Quality control (QC) is the process of monitoring and verifying that project deliverables meet the defined quality standards. It involves identifying defects in the deliverables and determining the need for corrective actions. Here’s a detailed look at the Perform Quality Control process:
- Inputs:
- Project Management Plan: This includes the quality management plan, which describes how QC will be performed.
- Quality Metrics: Specific criteria that the project will be measured against.
- Quality Checklists: Lists used to ensure that a standard process is followed for QC.
- Work Performance Data: Information on the project’s performance, which can be compared against quality standards.
- Approved Change Requests: Changes that have been approved but not implemented.
- Deliverables: Products, results, or capabilities produced by the process and needed by other processes.
- Tools & Techniques:
- Cause and Effect Diagrams: Help identify defects’ root causes.
- Control Charts: Used to determine the stability of processes.
- Flowcharting: Helps in identifying how different processes interrelate.
- Histogram: This shows the distribution of data and can help identify outliers.
- Pareto Chart: Highlights the most significant factors in a data set.
- Run Chart: Displays data points over time and can be used to identify trends.
- Scatter Diagram: Examines the relationship between two variables.
- Statistical Sampling: Evaluates a portion of a population to make inferences about the entire population.
- Inspections: Examines work products to determine if they meet specified criteria.
- Approved Change Requests Review: Ensures all change requests are thoroughly reviewed and justified.
- Outputs:
- Quality Control Measurements: Data and results from QC activities.
- Validated Changes: Approved changes that have been reviewed and verified for correctness.
- Validated Deliverables: Deliverables completed and checked for correctness against quality criteria.
- Organizational Process Assets Updates: Documentation of lessons learned, QC measurements, and other valuable experiences.
- Change Requests: A change request may be issued if a deliverable does not meet quality standards.
- Project Management Plan Updates: If the QC process identifies areas where the project can be improved, the project management plan may need to be updated.
- Project Document Updates: Various project documents may need to be updated based on QC findings.
Conclusion:
The Perform Quality Control process ensures the project’s deliverables meet the set quality standards. It involves continuous monitoring and inspections, and when deviations are found, corrective actions are recommended. This process ensures that the project’s objectives are met, and stakeholders are satisfied with the project’s outcome.
