MAP-01-011 HFI Technical Guide - Human Factors Integration ...

Annex 3 – HF Techniques, Methods and Tools• Advantages• The use of Synthetic User Modelling enables the visualisation andassessment of the design of a complete system or individual equipmentprior to construction.• Disadvantages• Even a simple Synthetic User Model can be a resource intense activity.A3.11.6Human Factors Trade-Off AnalysisThe purpose of Human Factors Trade-Off Analysis is to identify the optimalbalance between manpower, personnel, training, Human Factors engineeringand health and safety impact, risks and costs.In summary the HF issues and constraints are identified for each system option inthe Combined Operational Effectiveness and Investment Analysis (COEIA) andthe impact and likelihood of each Human Factor issue or constraint is estimated.The HFI domains and sub-areas are used to further characterise the nature ofissues and risks to which costs may be attached and the HFI issues and risks areused to examine the effect of changing the characteristics of system options witha view to realising an optimum balance between manpower, personnel, training,Human Factors engineering, health and safety.Human Factors Trade-Off Analysis is used during the Concept and Assessmentphases of the CADMID cycle in conjunction with the COEIA studies of systemoptions. Typically it will require the involvement of an HFI specialist and a smallteam of representative stakeholders including DEC, IPT, TES-SSG-ShipDes,DME, FOTR and TES-SA-MA.• Advantages• It provides a means to evaluate and determine the optimal solution from aHuman Factors whole systems perspective.• All HFI domains are (or at least should be) considered in determining theoptimum solution.• It provides a systematic method of justifying selected design solutions fromthe perspective of Human Factors, cost and risk.• Disadvantages• Human Factors Trade-Off Analysis is resource intensive in terms of time,participants and cost.• The requirement to co-ordinate and manage such a wide group ofstakeholders is logistically challenging.May 2006 Page A3-109 Issue 4