The element <personSkill> contains the required skill level of the person. This represents the skill level that the person must have attained to be able to perform his or her role in the procedure and is (eg, Basic, Intermediate, Advanced).The element <personSkill> must have the same values (the S1000D interpretation of the equivalent value of "stNN" as given in Chap 3.9.6.1) as the attribute skillLevelCode in the task definition branch of the Schedule Schema, if both are used. Refer to Chap 3.9.5.2.5.