FMEA	Failure Modes and Effects Analysis
LGDM	Large Group Decision Making
NCM	Normal Cloud Model
FM	Failure Mode
RPN	Risk Priority Number
O	Occurrence
S	Severity
D	Probability of Non-Detection
RF	Risk Factor
RFIC	Rough Fuzzy Integrated Cloud
TOPSIS	Technique for Order of Preference by Similarity to Ideal Solution
VIKOR	VlseKriterijumska Optimizacija I Kompromisno Resenje
DEMATEL	Decision-Making Trial and Evaluation Laboratory
UD	Uncertainty Degree
DD	Difference Degree
IVIFC	Interval-Valued Intuitionistic Fuzzy Cloud
DEA	Data Envelopment Analysis
TrFN	Trapezoidal Fuzzy Number
RBULI	Relative Basic Uncertain Linguistic Information
TFN	Triangular Fuzzy Number
HFS	Hesitant Fuzzy Set
NWHFS	Normal Wiggly Hesitant Fuzzy Set
PFDHHLTS	Probabilistic Free Double Hierarchy Hesitant Linguistic Term Set
LZN	Linguistic Z-Number
Ex	Expectation
En	Entropy
He	Hyper-entropy
HCLTS	Hesitant Cloud Linguistic Term Set
IQR	Interquartile Range
TIC	Theil’s Inequality Coefficient
ADS	Air Data System
ADM	Air Data Module
ADIRU	Air Data and Inertial Reference Unit
ADR	Air Data Reference
IR	Inertial Reference
ADC	Air Data Computer