Table 5.

Hierarchical mapping of Non-Technical skills and multi-step development of AS-NTS

Non-Technical Skill	Step 1: Literature	Step 2: Focus group		Step 3: Field Observation		Part of rating tools
		Highly important	Important	Skill (precursor skill) Observable	Skill difficult to observe	ANTS system	AS-NTS
Situational awareness	[26, 28, 30, 36–45]		*		*	*
Prioritising (Planning Tasks)	[12, 31, 46]	*		*		*	*	DIMENSION 1: Planning tasks, prioritising and problem solving
Decision-making	[12, 28, 41, 42, 47–54]	*		(*)		*	*
Maintaining standards	[31, 38, 39, 43, 54]		*	(*)		*	*
Coordinating team members and activities	[39, 55]	*		*		*	*	DIMENSION 2: Teamwork and leadership
Communication	[12, 22, 26, 28–31, 38, 40, 41, 43–47, 49–51, 53–59]	*		*			*
Leadership	[7, 12, 16, 26, 29–31, 36, 39, 41–44, 46, 47, 55–58]	*		*			*
Using authority and assertiveness	[38, 39, 56]		*	(*)		*	*
Team-building	[12, 28, 31, 36, 38, 39, 56]		*	*			*	DIMENSION 3: Team orientation
Team orientation/ Teamwork	[12, 28, 29, 31, 36, 38, 39, 45, 46, 56–58]	*		*		*	*
Resolving conflicts/ problems	[12, 39, 42, 47, 56]		*		*
Supporting others	[22, 28, 39, 42]		*		*	*