Involves both quantitative analysis and consensus building.  Using job task documents, a list of tasks is compiled by an analyst. Through an iterative process involving consensus building, the validity of the task list is assessed by subject matter experts, supervisors, and job incumbents.  Through discussions, each task’s complexity, importance, and frequency are numerically rated by members of the consensus group.  Once the tasks are identified, the group identifies and validates the knowledge, skills, and abilities required to perform each task.