- Use UML::Sequence to diagram your method calls - Looks cool but couldn't get the module's tests to pass.
- Write your own code to produce a Graphviz spec file - Good choice if you want a data structure diagrammed, e.g. State transitions.
- SchemaSpy works well for database tables.
Untried:
- UML::Class::Simple - class diagrams, not methods?
- Devel::Diagram - class diagrams, not methods?
- Devel::DProfPP