Defect Prediction Technology of Aerospace Software Based on Deep Neural Network and Process Measurement

Table 1

The metrics of NASA data set.

Metric	Definition	Metric	Definition
loc	Lines of code	t	Halstead time = e/18 s
	McCabe cyclomatic complexity	lOCode	Halstead code lines
	McCabe basic complexity	lOComment	Halstead comment lines
	McCabe design complexity	lOBlank	Halstead blank line number
n	Halstead operands and total number of operators	lOCodeAndComment	Halstead total number of lines of code and comments
	Halstead capacity	uniq_Op	Halstead number of unique operators
l	Halstead program length = ()	uniq_Opnd	Halstead number of unique operations
d	Halstead difficulty = (1/l)	total_Op	Halstead total number of operators
i	Halstead intelligence	total_Opnd	Halstead total number of operators
e	Halstead program efficiency = ()	branchCount	Halstead number of branches
b	Halstead workload estimate