Chidamber and Kemerer Java Metrics
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Latest commit c958e81 Sep 22, 2016 @dspinellis Adopt Apache license
The original license had open source terms, but GitHub could not
list it as open source.

The program ckjm calculates Chidamber and Kemerer object-oriented metrics by processing the bytecode of compiled Java files. The program calculates for each class the following six metrics proposed by Chidamber and Kemerer.

  • WMC: Weighted methods per class
  • DIT: Depth of Inheritance Tree
  • NOC: Number of Children
  • CBO: Coupling between object classes
  • RFC: Response for a Class
  • LCOM: Lack of cohesion in methods

In addition it also calculates for each class

  • Ca: Afferent couplings
  • NPM: Number of public methods

If you use this tool in your research, please cite it as follows.

Diomidis Spinellis. Tool writing: A forgotten art? IEEE Software, 22(4):9–11, July/August 2005. doi:10.1109/MS.2005.111.

Visit the project's home page for more information.