It can involve controlled laboratory experiments, subjective evaluations by people, or field testing.
Of course, there is a whole world of much more subjective evaluation beyond these fundamental principles.
It allowed the hearing judges to call in their own experts or use other "subjective evaluations" to determine an offender's risk.
But to sue the doctors involved, he said, is "very hard to do, simply because so much medicine is a matter of subjective evaluation."
He also said it was impracticable for anyone to decide who should be eligible without some subjective evaluation.
It is this subjective evaluation that determines whether retirement results in personal satisfaction or emotional stress.
Officials conceded that the second and third groups involved a more subjective evaluation than the first.
Doğan Holding claimed that the decision to impose a tax fine to the group was based on "subjective" evaluations.
By using the reasonable person standard, the courts instead use an objective tool and avoid such subjective evaluations.
This factor reflects subjective evaluations of membership within the Pacific group.