This may be a useful check when considering development guidelines. Each guideline should lead to one or more factors of the trifecta.
Free from error or fault; true or accurate.
The condition of being protected from harm or other non-desirable outcomes.
Efficiency is the ability to avoid wasting resources in producing a desired result.
Do not confuse with Effectiveness.
This is especially for czech readers where the word efektivita sounds just like effectiveness but carries the meaning of efficiency.