Mathematical Problems in Engineering / 2019 / Article / Tab 4

Research Article

Quantitative Risk Evaluation Model of the Multilevel Complex Structure Hierarchical System in the Petrochemical Industry

Table 4

A scale reference table of the .

Difficulty description of the DDQuantitative interpretation of the DDQuantitative scale score

Very highAbsolutely not detected10
-Impossible to be tested9
HighDifficultly detect8
-The rate of detection is very low7
ModerateThe rate of detection is low6
-Moderate detection rate5
-The detection rate is higher4
LowThe rate of detection is high3
-The rate of detection is very high2
Very lowVery easy to be detected1