Overview
Project Quality Management processes include all the
activities of the performing organization that determine quality policies,
objectives, and responsibilities so that the project will satisfy the needs for
which it was undertaken. It implements the quality management system through the
policy, procedures, and processes of quality planning, quality assurance, and
quality control, with continuous process improvement activities conducted
throughout, as appropriate. Figure
8-1 provides an overview of the Project Quality Management processes, and Figure 8-2 provides a process flow
diagram of those processes and their inputs, outputs, and other related
Knowledge Area processes. The Project Quality Management processes include the
following:
8.1 Quality Planning - identifying which quality
standards are relevant to the project and determining how to satisfy them.
8.2 Perform Quality Assurance - applying the
planned, systematic quality activities to ensure that the project employs all
processes needed to meet requirements.
8.3 Perform Quality Control - monitoring
specific project results to determine whether they comply with relevant quality
standards and identifying ways to eliminate causes of unsatisfactory
performance.
These processes interact with each other and with the processes in
the other Knowledge Areas as well. Each process can involve effort from one or
more persons or groups of persons based on the needs of the project. Each
process occurs at least once in every project and occurs in one or more project
phases, if the project is divided into phases. Although the processes are
presented here as discrete elements with well-defined interfaces, in practice
they may overlap and interact in ways not detailed here. Process interactions
are discussed in detail in Chapter 3.
The basic approach to quality management described in this section
is intended to be compatible with that of the International Organization for
Standardization (ISO). This generalized approach should also be compatible with
proprietary approaches to quality management such as those recommended by
Deming, Juran, Crosby and others, and non-proprietary approaches such as Total
Quality Management (TQM), Six Sigma, Failure Mode and Effect Analysis, Design
Reviews, Voice of the Customer, Cost of Quality (COQ), and Continuous
Improvement.
Project Quality Management must address the management of the
project and the product of the project. While Project Quality Management applies
to all projects, regardless of the nature of their product, product quality
measures and techniques are specific to the particular type of product produced
by the project. For example, quality management of software products entails
different approaches and measures than nuclear power plants, while Project
Quality Management approaches apply to both. In either case, failure to meet
quality requirements in either dimension can have serious negative consequences
for any or all of the project stakeholders. For example:
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Meeting customer requirements by overworking the project
team may produce negative consequences in the form of increased employee
attrition, unfounded errors, or rework
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Meeting project schedule objectives by rushing planned
quality inspections may produce negative consequences when errors go undetected.
Quality is 'the degree to which a set of inherent characteristics
fulfill requirements'[6]. Stated and
implied needs are the inputs to developing project requirements. A critical
element of quality management in the project context is to turn stakeholder
needs, wants, and expectations into requirements through Stakeholder Analysis
(Section
5.2.2.4), performed during Project Scope Management.
Quality and grade are not the same. Grade is a category assigned
to products or services having the same functional use but different technical
characteristics[7]. Low quality is always a problem; low grade may
not be. For example, a software product can be of high quality (no obvious
defects, readable manual) and low grade (a limited number of features), or of
low quality (many defects, poorly organized user documentation) and high grade
(numerous features). The project manager and the project management team are
responsible for determining and delivering the required levels of both quality
and grade.
Precision and accuracy are not equivalent. Precision is
consistency that the value of repeated measurements are clustered and have
little scatter. Accuracy is correctness that the measured value is very close to
the true value. Precise measurements are not necessarily accurate. A very
accurate measurement is not necessarily precise. The project management team
must determine how much accuracy or precision or both are required.
Modern quality management complements project management. For
example, both disciplines recognize the importance of:
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Customer satisfaction. Understanding,
evaluating, defining,and managing expectations so that customer requirements are
met. This requires a combination of conformance to requirements (the project
must produce what it said it would produce) and fitness for use (the product or
service must satisfy real needs).
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Prevention over inspection. The cost of
preventing mistakes is generally much less than the cost of correcting them, as
revealed by inspection.
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Management responsibility. Success
requires the participation of all members of the team, but it remains the
responsibility of management to provide the resources needed to succeed.
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Continuous improvement. The
plan-do-check-act cycle is the basis for quality improvement (as defined by
Shewhart and modified by Deming, in the ASQ Handbook, pages 13-14, American Society for Quality,
1999). In addition, quality improvement initiatives undertaken by the performing
organization, such as TQM and Six Sigma, can improve the quality of the
project's management as well as the quality of the project's product. Process
improvement models include Malcolm Baldrige, CMM®, and
CMMISM.
The cost of quality refers to the total cost of all efforts
related to quality. Project decisions can impact operational costs of quality as
a result of product returns, warranty claims, and recall campaigns. However, the
temporary nature of the project means that investments in product quality
improvement, especially defect prevention and appraisal, can often be borne by
the acquiring organization, rather than the project, since the project may not
last long enough to reap the rewards.
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Note |
Note: Not all process interactions and data flow among the
processes are shown.
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