Hierarchical Task Analysis techniques
Starting the analysis
- specify area of work or main task
- break down into 4 - 8 subtasks
- draw subtasks out into layered plans
Progressing the analysis
- determine “granularity” of analysis
- choose depth-first or breadth-first
- document (notation in Preece p.415)
Finalizing the analysis
- check for consistency, integrity
- present to external “task expert” for confirmation