Skills & Attributes
Professional skills exist on both the Captain and Crew. The six core Attributes belong to the Captain and provide a smaller supporting contribution to related Captain skills. Crew development uses its own skills, traits, specialties, service standing, and readiness instead.
Skills map to actual work.
The same professional vocabulary is used across the Captain and Crew, although each contributes through its own progression and readiness state.
Attributes support the Captain's professional ratings.
Each Captain skill draws on a small set of related Attributes when the game resolves direct Captain contribution. Endurance is the exception: it primarily belongs to human condition and recovery rather than one proficiency.
A number matters because of where it is used.
There is no universal best stat. Different activities resolve different professional skills, while the Captain's related Attributes provide supporting competence and current human readiness determines how much of that competence is available right now.