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8 - PROJECT QUALITY MANAGEMENT

The Control Quality process uses a set of operational techniques and tasks to verify that the delivered output
will meet the requirements. Quality assurance should be used during the project’s planning and executing phases
to provide confidence that the stakeholder’s requirements will be met and quality control should be used during
the project executing and closing phases to formally demonstrate, with reliable data, that the sponsor and/or
customer’s acceptance criteria have been met.

The project management team may have a working knowledge of statistical control processes to evaluate data
contained in the control quality outputs. Among other subjects, the team may find it useful to know the differences
between the following pairs of terms:

• Prevention (keeping errors out of the process) and inspection (keeping errors out of the hands of the
customer).
• Attribute sampling (the result either conforms or does not conform) and variables sampling (the result is
rated on a continuous scale that measures the degree of conformity).
• Tolerances (specified range of acceptable results) and control limits (that identify the boundaries of
common variation in a statistically stable process or process performance).

8.3.1 control Quality: Inputs

8.3.1.1 Project Management Plan

Described in Section 8.1.3.1. The project management plan contains the quality management plan, which is
used to control quality. The quality management plan describes how quality control will be performed within the
project.

8.3.1.2 Quality Metrics

Described in Section 4.2.3.1. A quality metric describes a project or product attribute and how it will be measured.
Some examples of quality metrics include: function points, mean time between failure (MTBF), and mean time to
repair (MTTR).

8.3.1.3 Quality checklists

Described in Section 8.1.3.4. Quality checklists are structured lists that help to verify that the work of the project
and its deliverables fulfill a set of requirements.

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