Rule Definition
The effort and time for diagnosis of deficiencies or causes of failures, or for identification of parts to be modified is directly related to the number of execution paths, i.e. the complexity of the control flow.
Analyzability declines with increasing Cyclomatic Complexity.
Each modification must be correct for all execution paths. Cyclomatic Complexity computes the number of the linearly independent paths, a lower bound of all execution paths ignoring multiple iterations.
Changeability declines with increasing Cyclomatic Complexity.
Complete testing requires coverage of all execution paths. Cyclomatic Complexity computes the number of the linearly independent paths, a lower bound of all execution paths ignoring multiple iterations.
Testability declines with increasing Cyclomatic Complexity.
Remediation
Try to reduce the Functions with High Cyclomatic Complexity.
Reference
Standard suggestions based on CAST Quality Model
Related Technologies
Technical Criterion
Complexity - Algorithmic and Control Structure Complexity
About CAST Appmarq
CAST Appmarq is by far the biggest repository of data about real IT systems. It's built on thousands of analyzed applications, made of 35 different technologies, by over 300 business organizations across major verticals. It provides IT Leaders with factual key analytics to let them know if their applications are on track.