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Task Analysis

Task Analysis. An introduction. What is Task Analysis. Broad ranging group of methodologies Decompositional in nature Many uses e.g. Always goal driven. Learning Goals. Understand the principles of task analysis Be familiar with all the core methodologies

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Task Analysis

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  1. Task Analysis An introduction

  2. What is Task Analysis • Broad ranging group of methodologies • Decompositional in nature • Many uses e.g. • Always goal driven

  3. Learning Goals • Understand the principles of task analysis • Be familiar with all the core methodologies • Have a knowledge of a selection of less frequently used methods • Conduct at least one extensive task analysis • Understand why such simple techniques are so useful • Understand the limitations of their use.

  4. Basic stages of task analysis • Awareness of need to examine issue • Question definition • Knowledge Elicitation • Knowledge Representation • Data analysis and manipulation • Iteration and Validation • Recommendation, comment and intervention

  5. Awareness/question definition • Important issue when work is commissioned • Closely linked to organisational issues • May be in house, or out sourced • Resourcing a key issue - task analyses take time

  6. Knowledge Elicitation - gathering data • A discrete stage that needs to done thoroughly • A range of techniques • Should develop a proper strategy • experience should allow the expert practitioner to proceed on an apparently informal basis • Need to acquire domains specific knowledge to be effective

  7. Some methods for Knowledge Elicitation • Observation • Verbal protocols • Interviews • Diary Studies • Questionnaires • Protocol analysis Operating logs • Action Research Paradigm

  8. Who to gather information from? • Operators • Experts • Naive users • Trainers • Supervisors • Managers • Associated roles e.g. pilot for an ATC TA

  9. Some methods for Knowledge Representation (KR) • HTA - Hierarchical Task Analysis • TTA - Tabular Task Analysis • FMEA- Failure Mode Effect Analysis • Link Analysis • MORT - Management Oversight Risk Trees • Murphy Diagrams • Time Line Analysis • And many, many, many more.

  10. Further analysis • data may, on analysis yield further useful information • e.g. Probabilistic Risk Analysis (PRA) • e.g. Human Reliability Analysis(HRA) • e.g. organisational analysis

  11. Intervention • Outside the formal task analysis process • Likely that you will wish to make or even undertake interventions.

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