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

Chapter 15 – Operability And User-Equipment Interaction15.3.2 Assessment Phase Activities15.3.2.1 Specify Allocation of FunctionsPurposeTo provide a systematic description of the functions providedwithin the equipment and to ensure their effective allocation asfully automatic, semi-automatic or manual.Inputs • Product from outline use of automation (Sect 15.3.1.1).• Target Audience Description (TAD) (Chap 6).Methods • Mission Analysis.• System Requirements.• Operational Scenario Description.• Function Analysis.• Allocation of Function (Partitioning).Steps • Develop or adapt criteria for allocating functions toequipment and human.• Agree overall roles of automatic facilities and personnel inconcept of operation with DEC, TES-SSG-CSHF, MLS CGand TES-SA-MA using Mission Analysis and System Reqs.• Identify systems engineering options for the overallequipment and isolate discrete functions (Function Analysis).• Select an appropriate method and notation for use inconducting the allocation of functions.• Apply allocation of function criteria to identify technologicaland human strengths and limitations.• Develop an allocation of functions for each equipment optionassigning functions as fully automatic, semi-automatic ormanual.• Develop logic and sequencing of functions within human andequipment components of equipment.• Describe information flow between human and equipment toidentify high-level user-equipment interfaces.• Conduct high-level modelling of information flow andbottlenecks through each equipment option, making use ofOperational Scenarios.• Conduct trade-offs to reduce operational, technological andhuman risks and to optimise overall equipment performance.Outputs • Equipment options comprising:o A description of the functions in each option;o The assignment of functions to human and equipment;o Information flows within each option;o Predicted performance and risks associated with eachoption.HFI ActivitiesNov 2006 Page 15-21 Issue 4