| Cohesion |
Lack of Cohesion in Methods 2 (LCOM2) |
Number of method pairs that do not share attributes, minus the number of method pairs that share attributes. |
Decreases |
| |
Lack of Cohesion in Methods 3 (LCOM3) |
Treats each method pair as an individual entity, and determines the difference between the amount of similar and different pairs. |
Decreases |
| |
Tight Class Cohesion (TCC) |
The number of directly connected visible methods in a class divided by the number of maximal possible connections between the visible methods of a class. |
Increases |
| Coupling |
Coupling Between Object (CBO) |
The number of classes coupled to the analyzed class. |
Decreases |
| |
FANIN |
The number of external classes that invoke methods from the analyzed class. |
Decreases |
| |
FANOUT |
The number of external method invocations made by the analyzed class. |
Decreases |
| Inheritance |
Base Classes (IFANIN) |
The number of immediate base classes and interfaces. |
Decreases |
| |
Number of Children (NOC) |
The number of immediate subclasses to the analyzed class. |
Decreases |
| |
Depth of Inheritance Tree (DIT) |
The number of nodes between the root of the inheritance tree and the analyzed class. |
Decreases |
| Complexity |
Cyclomatic Complexity (CC) |
Measure of the complexity of a module’s decision structure. |
Decreases |
| |
Essential Complexity (ev(G)) |
Measure of the degree to which a module contains unstructured constructs. |
Decreases |
| |
Maximum Nesting (MAxNEST) |
Maximum nesting level of control constructs. |
Decreases |
| |
Weighted Methods per Class (WMC) |
The sum of the cyclomatic complexity of the methods of a class. |
Decreases |
| |
Number of Methods (NM) |
The number of non-inherited methods declared in the analyzed class. |
Decreases |
| Size |
Physical Lines (NL) |
The number of physical lines in the class. |
Decreases |
| |
Blank Lines of Code (BLOC) |
The number of blank lines of code in the class. |
Decreases |
| |
Source Lines of Code (LOC) |
The number of lines containing source code in the class. |
Decreases |
| |
Declarative Lines of Code |
The number of lines containing declarative source code in the class. |
Decreases |
| |
Executable Lines of Code |
The number of lines containing executable source code in the class. |
Decreases |
| |
Lines with Comments (CLOC) |
The number of lines containing comments in a class. |
Increases |
| |
Semicolons |
The number of semicolons in a class. |
Decreases |
| |
Statements |
The number of statements in a class. |
Decreases |
| |
Declarative Statements |
The number of declarative statements in a class. |
Decreases |
| |
Executable Statements |
The number of executable statements in a class. |
Decreases |
| |
Comment to Code Ratio |
The ratio of comment lines to code lines in a class. |
Increases |
| |
Instance Variables (NIV) |
The number of instance variables in a class. |
Decreases |
| |
Instance Methods (NIM) |
The number of instance methods in a class. |
Decreases |
| |
Methods |
The total number of methods, including inherited ones, in a class. |
Decreases |
| |
Local Default Visibility Methods |
The number of local methods with default visibility in a class. |
Decreases |
| |
Average Number of Lines |
The average number of physical lines between methods of a class. |
Decreases |
| |
Average Number of Blank Lines |
The average number of blank lines of code between methods of a class. |
Decreases |
| |
Average Number of Lines of Code |
The average number of lines of source code between methods of a class. |
Decreases |
| |
Average Number of Lines with Comments |
The average number of lines containing comments between methods of a class. |
Increases |
| |
Class Methods |
The number of class methods in a class. |
Decreases |
| |
Class Variables |
The number of class variables in a class. |
Decreases |
| |
Private Methods (NPM) |
The number of local private methods in a class. |
Decreases |
| |
Protected Methods |
The number of local protected methods in a class. |
Decreases |
| |
Public Methods (NPRM) |
The number of local public methods in a class. |
Decreases |