The document discusses the development of 'ce.re.s', an Eclipse plug-in for assessing source code readability, created as part of a software engineering thesis at the University of Molise. It highlights the importance of code readability in reducing maintenance costs and presents empirical evaluations involving both students and industrial developers. The results reveal statistically significant differences in readability indices based on the use of the plug-in during various experimental setups.

1. CE.RE.S: Un plug-in Eclipse per valutare
la Leggibilità del codice sorgente
UNIVERSITÀ DEGLI STUDI DEL MOLISE
DIPARTIMENTO DI BIOSCIENZE E TERRITORIO
CORSO DI LAUREA IN INFORMATICA
Tesi di Laurea in Ingegneria del software
e laboratorio
ANNO ACCADEMICO 2012-2013
Relatore:
Chiar.mo
Rocco Oliveto
Candidata:
Catolino Gemma
Matricola 142524

2. Code readability

3. Code readability
CE.RE.S:
An eclipse plug-in to monitoring
source code readability

4. Code readability
CE.RE.S:
An eclipse plug-in to monitoring
source code readability
Empirical Evaluation

5. Software life cycle

6. but software development never stops!

7. Maintenance costs are

8. 55%-75%more than development costs
Maintenance costs are

9. Good documentation

10. Source code = primary Documentation

11. Readability
“is how easily you read the
words, as in long passages of text.
There are very different
requirements in each case,
depending on the visibility
of the text and the level of
experience of the reader”

12. Readability can be measured…

13. Buse e Weimer
Readability prediction model
code based on structural factors
CODE INDENTATION
LENGTH OF STATEMENT
NUMBER OF BRACKETS

14. syntax + semantics

15. Scalabrino et al.

16. Semantics in Scalabrino et al. metric
CONSISTENCY BETWEEN
SOURCE CODE AND COMMENTS
CORRECT DENOMINATION
OF THE IDENTIFIER

17. Problem…

18. …Solution!

19. …Solution!

20. LIVE DEMO

21. Empirical evaluation

22. Participant
10 STUDENTS
2 INDUSTRIAL
DEVELOPERS

23. Design
Experimental
Group1 Group2 Group3 Group4
Lab1 T1 - NOPlug-in T1 - Plug-in T2 - NOPlug-in T2 - Plug-in
Lab2 T2 - Plug-in T2 - NOPlug-in T1 - Plug-in T1 - NOPlug-in

24. Results: Readability Index

25. Results: Readability Index

26. Results: Readability Index
Statistically Significant

27. Frequence Analysis

28. Frequence Analysis
0-5 volte 5-10 volte >10 volte

29. Checklist
Questions about identifiers

30. Checklist
Questions about comments
Questions about identifiers

31. Checklist
Questions about comments
Questions about identifiers
Questions about source structure