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

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<strong>MAP</strong>-<strong>01</strong>-<strong>01</strong>1 – <strong>HFI</strong> <strong>Technical</strong> <strong>Guide</strong> (STGP 11)• Operational Scenario Description provides scenario data for use in <strong>HFI</strong>assessments of the design.• Disadvantages• Operational Scenario Description analysis can be time consuming for largescenarios.• To reap the full benefit of a Operational Scenario Description analysis, amulti-discipline team needs to be put together. This could prove quitedifficult to achieve.A3.3.7Mission Critical Task IdentificationThe purpose of Mission Critical Task Identification is to isolate mission criticaltasks likely to be performed by personnel at an early stage in the systemdevelopment process. This focuses early <strong>HFI</strong> analysis in a cost-effective way.Mission Critical Task identification is achieved using operational scenarios toidentify relevant sub-systems that play a part in the scenarios, e.g. machinerycontrol and surveillance, sonar and deck handling. The allocation of functionsanalysis is used to isolate high-level user and maintainer tasks and subjectmatter experts are used to estimate the frequency, difficulty and importance oftasks to mission success. The tasks with the highest ratings are isolated for usein <strong>Human</strong> <strong>Factors</strong> trade-offs.Mission Critical Task Identification is conducted during the Concept andAssessment phases of the CADMID cycle using subject matter experts to identifymission critical tasks.• Advantages• Mission Critical Task Identification focuses early <strong>HFI</strong> analysis in a costeffectiveway• Disadvantages• Mission Critical Task Identification can be time consuming and resourceintensive.• To reap the full benefit of Mission Critical Task Identification, a multidisciplineteam needs to be put together. This could prove quite difficult toachieve.A3.3.8Operability Criteria DefinitionThe goal of Operability Criteria Definition is to provide design guidelines andassessment criteria for the user equipment interface of systems by providingcriteria for the effectiveness, efficiency, consistency (including inter-operability),and ease of learning and acceptability of user equipment interfaces.May 2006 Page A3-24 Issue 4

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