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terms of the contract. The Human Factors Coordinator should review the CDRL to ensure the proper
timing of submission of the data and that the appropriate distribution is indicated. The Human Factors
Coordinator should recommend approval or rejection of the delivered product.
17.3.5 Human Factors in Source Selections
Human factors criteria must be developed to support source selections conducted in any phase. Since
it is difficult to enforce compliance after a contract is awarded if vendor capabilities are inadequate,
offerors must demonstrate the ability to incorporate human factors design criteria and guidelines into
their system design and engineering before contract award. The Sponsor incorporates human factors
requirements in the Screening Information Request (SIR), which includes appropriate weighting in the
proposal evaluation criteria. Offerors show they understand the requirements by making human factors
commitments in their proposals. The offerors must demonstrate comprehension of and the ability to
comply with the total system performance concept as well as their ability to integrate human
considerations into system design and development. The human factors practitioner, having provided
input to the source selection plan, helps determine how well offerors have met the human factors
selection criteria. Representation of human factors expertise on source selection team or panel(s) will
provide the capability to adequately assess the human factors aspects of proposals.
17.4 Conduct human factors integration
The integration function (such as in system engineering activities) is the translation of operational
requirements into design, development, and implementation of concepts and requirements. The Human
Factors Coordinator assists the sponsor’s and contractor’s system engineering effort by integrating
human factors within the project development and management process. Identifying the human
performance and safety boundaries, risks, trade-offs, and opportunities of the system engineering
options and alternatives does this. A human engineering effort (which may directly affect safety) is
conducted to:
·  Develop or improve human interfaces of the system,
·  Achieve required effectiveness of human performance during system operation, maintenance, and
support, and
·  Make economical demands upon personnel resources, skills, training, and costs.
System engineering is an interdisciplinary approach to evolve and verify an integrated and lifecyclebalanced
set of system product and process solutions that satisfy customer needs. The Human Factors
Coordinator assists in the system engineering task by contributing information related to design
enhancements, safety features, automation impacts, human-system performance trade-offs, ease of use,
and workload. The Human Factors Coordinator also assists in identifying potential task overloading or
skill creep for system operators and maintainers. Where user teams or operator juries and repreFAA
System Safety Handbook, Chapter 17: Human Factors Principles & Practices
August 2, 2000
17 - 10
sentatives participate in achieving an operational viewpoint to design, the human factors engineer
complements the effort to ensure performance data represents more than individual preferences.
Optimally, the Human Factors Coordinator participates fully in system engineering design decisions.
While the actual design and development work may be completed by either the sponsor or the
contractor, the Human Factors Coordinator (in conjunction with the Human Factors Working Group)
provides close, continuous direction throughout the process. To accomplish this, the Human Factors
Coordinator reviews all documentation for human performance impacts that will affect total system
performance and exercises his or her responsibility by participating in technical meetings and system
engineering design reviews.
The human engineer actively participates in four major interrelated areas of system engineering:
·  Planning
·  Analysis
·  Design and Development
·  Test and Evaluation
17.4.1 Human Engineering in Planning
Human engineering planning is performed to ensure effective and efficient support of the system
engineering effort for human performance and human resource considerations. Human engineering
program planning includes the human factors tasks to be performed, human engineering milestones,
level of effort, methods to be used, design concepts to be utilized, and the test and evaluation program,
in terms of an integrated effort within the total project.
The human engineering planning effort specifies the documentation requirements and assists in the
　
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