Project Quality Management includes the processes required to ensure that the
project will satisfy the needs for which it was undertaken. It includes "all activities of
the overall management function that determine the quality policy, objectives, and
responsibilities and implements them by means such as quality planning, quality
control, quality assurance, and quality improvement, within the quality system" [1].
Figure 8-1
provides an overview of the following major project quality management processes:
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Quality Planning
— identifying which quality standards
are relevant to the project and determining how to satisfy them. |
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Quality Assurance
— evaluating overall project performance
on a regular basis to provide confidence that the project will satisfy the relevant quality
standards. |
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Quality Control
— monitoring specific project results to
determine if 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 may involve effort from one or more individuals
or groups of individuals based on the needs of the project. Each process generally
occurs at least once in every project phase.
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,
Project Management Processes.
The basic approach to quality management described in this section is intended
to be compatible with that of the International Organization for Standardization
(ISO) as detailed in the ISO 9000 and 10000 series of standards and guidelines.
This generalized approach should also be compatible with (a) proprietary
approaches to quality management such as those recommended by Deming, Juran,
Crosby, and others, and (b) nonproprietary approaches such as Total Quality
Management (TQM), Continuous Improvement, and others.
Project quality management must address both the management of the project
and the product of the project. The generic term product is occasionally used, in
literature regarding quality, to refer to both goods and services. Failure to meet quality
requirements in either
dimension can have serious negative consequences for any or all of the project
stakeholders. For example:
Meeting customer requirements by
overworking the project team may
produce negative consequences in the form of increased employee attrition.
Meeting project schedule objectives by
rushing planned quality inspections
may produce negative consequences when errors go undetected.
Quality is "the totality of characteristics of an entity that bear on its ability
to satisfy stated or implied needs" [2]. Stated and implied needs are the inputs to developing
project requirements. A critical aspect of quality management in the
project context is the necessity to turn implied needs into requirements through project
scope management, which is described in
Chapter 5.
The project management team must be careful not to confuse quality with grade.
Grade is "a category or rank given to entities having the same functional use but
different technical characteristics" [3]. Low quality is always a problem; low grade may
not be. For example, a software product may be of high quality (no obvious bugs,
readable manual) and low grade (a limited number of features), or of low quality
(many bugs, poorly organized user documentation) and high grade (numerous
features). Determining and delivering the required levels of both quality and grade are
the responsibilities of the project manager and the project management team.
The project management team should also be aware that modern quality
management complements project management. For example, both disciplines
recognize the importance of:
Customer satisfaction—understanding,
managing, and influencing needs so
that customer expectations 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 produced must
satisfy real needs).
Prevention over inspection—the cost of
preventing mistakes is always
much less than the cost of correcting them, as revealed by inspection.
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.
Processes within phases—the repeated
plan-do-check-act cycle described
by Deming and others is highly similar to the combination of phases and processes
discussed in
Chapter 3,
Project Management Processes.
In addition, quality improvement initiatives undertaken by the performing
organization (e.g., TQM, Continuous Improvement, and others) can improve the
quality of the project´s management as well as the quality of the project product.
However, there is an important difference of which the project management team
must be acutely aware—the temporary nature of the project means that
investments in product quality improvement, especially defect prevention and appraisal,
must often be borne by the performing organization since the project may not last
long enough to reap the rewards.