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Manage and Control Quality

The Manage Quality process uses the outputs from the quality planning in order to derive specific quality related activities. These activities are related to quality assurance (process improvements and compliance) and product design aspects.

The tests defined in Manage Quality are executed on the Control Quality process. In the latter, any failures are analyzed and case to case recommendations provided.  This data is also fed back into Manage Quality for quality improvements.

 

The following section contains PMBOK v5 content and it is not applicable to PMBOK v6.

Perform Quality Assurance is an execution process that is performed while the project work is being done.

Following tools and techniques are used to Perform Quality Assurance process:

PLAN QUALITY AND PERFORM QUALITY CONTROL TOOLS AND TECHNIQUES :

The tools and techniques of Plan Quality and Perform Quality Control processes are used as a part of the Perform Quality Assurance process.

QUALITY AUDITS

A team of auditors is responsible to see if the project is complying with company policies, standardized practices, and procedures and to determine whether the policies, practices, and procedures being used are efficient and effective.

PROCESS ANALYSIS

The process analysis should be planned in at certain points in the project. Process analysis is a part of continuous improvement effort on a project and focuses on identifying improvements that might be needed in processes.

OUTPUTS OF PERFORM QUALITY ASSURANCE

Perform Quality Assurance leads to the following outputs:

  • Change requests

  • Updated standards and processes

  • Updated project management plan and project documents

PERFORM QUALITY CONTROL

Perform Quality Control is a process of ensuring a certain level of quality in a deliverable, whether it is a product or a service. The control means to measure, and that is a major function of the Perform Quality Control process. It measures products or services to determine whether they meet the quality standards. In large companies, a quality control department may complete much of quality control work and report the findings to the project manager.

The project manager should be able to read and understand the quality measurement reports. Quality Control occurs throughout the life of the project. A few important terms related to quality control are described:

  • MUTUAL EXCLUSIVITY :

Two events are said to be mutually exclusive if they cannot both occur in a single trial.

  • PROBABILITY :

Probability refers to the likelihood that something will occur. It is expressed as a decimal or a fraction, on a scale of zero to one.

  • NORMAL DISTRIBUTION

A normal distribution is a shape of a bell curve and is the most common probability density function. It is used to measure variations.

  • STATISTICAL INDEPENDENCE

Statistical independence means the probability of one event occurring does not affect the probability of another event occurring.

  • STANDARD DEVIATION (OR SIGMA)

A measure of range is its standard deviation. This concept is also sometimes stated as a measure of how far you are from the MEAN can be used to explore the factors that will result in the desired future discussion which states that 80% of the problems are due to 20% of the causes.

OUTPUTS OF PERFORM QUALITY CONTROL

The outputs of the Perform Quality Control process are:

  • Measurements

  • Validated changes

  • Updates to the project management plan and project documents

  • Change requests

  • Lessons learned

  • Validated deliverables



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