Statement-Level Cohesion Metrics and their Visualization

Slice-based metrics for cohesion have been defined and examined for years. However, if a module with low cohesion has been identified, the metrics cannot help the maintainer to restructure the module to improve the cohesion. This work presents statement-level cohesion metrics based on slices and chops. When visualized, the statement-level cohesion metrics can show which parts of a module have a low cohesion and thus help the maintainer to identify the parts that should be restructured.