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Chapter 4. Measuring Evolving Software
Abbv. Name Description
CBC Try-Catch Block Number of try-catch blocks
Count
THC Throw Count Number of throw statements
ICC Inner Class Number of inner classes (counted recursively)
Count
MCC Method Call Number of method calls
Count
MCI Internal Method Number of internal method calls (that is, methods
Call Count
defined in the same class)
MCE External Method Number of times methods defined outside of the
Call Count class are invoked
LVC Local Variable Number of local variables defined across all
Count
methods in the class
OOC Instance Of Number of times the instanceof operator is
Check Count used
CAC Check Cast Number of times a cast is checked for
Count
TCC Type Construction
Number of times a new object is created
Count
CLC Constant Load Number of constants loaded from a local variable
Count
PLC Primitive Load Number of times a primitive is loaded from a local
Count
variable
PSC Primitive Store Number of times a primitive is stored into a local
Count
variable
ALC Array Load Count Number of arrays loaded from a local variable
ASC Array Store Count Number of arrays stored into a local variable
FLC Field Load Count Number of times an object or primitive is loaded
from a field
FSC Field Store Count Number of times an object or primitive is stored
into a field
LIC Load Count Total number of load operations (is a sum of PLC,
ALC, FLC, and CLC)
SIC Store Count Number of store operations (is a sum of PSC,
ASC, and FSC)
IOC Increment Operation
Number of times the increment operation is used
Count
ZIC Zero Operand Instr.
Count
Number of bytecode instructions that have no
operands
ITC Instruction Number of bytecode instructions
Count
NOB Branch Count Number of branch instructions (counts all conditional
branches including the cases inside a
switch statement as well as for and while loops)
GTC Goto Count Number of times a goto instruction is used (this
is generated when the source code contains loop
constructs and is generally paired with a branch
instruction)
Table 4.3: Metrics computed by processing method bodies of each
class. The mapping between these measures and the bytecode is presented
in Appendix C.
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