Guidelines for permissible maximum linearly-independent cyclomatic complexity?

48 Views Asked by At

For software engineering metrics, what are some guidelines on the maximum permissible linearly-independent cyclomatic complexity? For a properly designed module, what is the upper-bound on cyclomatic complexity?

1

There are 1 best solutions below

2
Patrick from NDepend team On BEST ANSWER

The recommendation in the documentation of the tool NDepend concerning method Cyclomatic Complexity is:

  • Methods where CC is higher than 15 are hard to understand and maintain.

  • Methods where CC is higher than 30 are extremely complex and should be split into smaller methods (except if they are automatically generated by a tool).

For a properly designed module, what is the upper-bound on cyclomatic complexity?

CC applies well on methods because a method is a unit of code flow understanding. There are other metrics to estimate the classes and modules (as a grape of classes) design and complexity like for example:

Disclaimer: I work for NDepend