The skill with which something was made.
From BNC Technical Specification:
1. Workmanship is to be first class throughout and to be to the satisfaction of Owners, Class Society and Authorities.
2. All steel works will be carried out according to the IACS, Shipbuilding and Repair Quality Standard. Especially:
a) Welding of hull structures is to be carried out by qualified welders.
b) Records of welders and their certificates are to be kept and made available to Owners for inspection.
c) Welding operations are to be carried out under shelter from rain, snow and wind, provisions to be made for proper accessibility, staging, lighting and ventilation.
3 . All other works will be carried performed to high international shipbuilding standards and to be to the satisfaction of Owners, Class Society and Authorities.