An object-oriented metrics suite for Ada 95

ABSTRACT

Ada 95 added object-oriented programming capabilities to the existing Ada standard. The object-oriented paradigm results in new relationships within and among software modules. Traditional software product metrics, i.e., those metrics developed for functionally oriented software, do not account for these new relationships and may be insufficient for use in object-oriented development. This paper addresses this deficiency by 1) defining a set of object-oriented metrics tailored to Ada 95 software, and 2) providing empirical evidence of their validity. This set of metrics includes product measures quantifying the class-related software attributes of size, coupling, cohesion, and complexity. The results indicate that many of the metrics examined do correlate to the number of revisions made to the classes during development.

REFERENCES

• 1: Norman E. Fenton, Software Metrics: A Rigorous Approach, Chapman & Hall, Ltd., London, UK, 1991
• 2: T. McCabe, "A Complexity Measure," IEEE Transactions of Software Engineering, vol. 2, Dec. 1976, pp. 308-320.
• 3: Maurice H. Halstead, Elements of Software Science (Operating and programming systems series), Elsevier Science Inc., New York, NY, 1977
• 4: D. Tegarden, S. Sheetz, and D. Monarchi. "Effectiveness of Traditional Software Metrics for Object-Oriented Systems," Twenty-Fifth Hawaiian International Conference on System Sciences - HICSS-25, Jan. 92.
• 5: I. Brooks, "Object-Oriented Metrics Collection and Evaluation with a Software Process," Proc. OOPSLA '93 Workshop Processes and Metrics for Object-Oriented Software Development, Washington, D.C., 1993.
• 6: S. R. Chidamber , C. F. Kemerer, A Metrics Suite for Object Oriented Design, IEEE Transactions on Software Engineering, v.20 n.6, p.476-493, June 1994 [doi>10.1109/32.295895]
• 7: Neville I. Churcher , Martin J. Shepperd, Comments on 'A Metrics Suite for Object Oriented Design', IEEE Transactions on Software Engineering, v.21 n.3, p.263-265, March 1995 [doi>10.1109/32.372153]
• 8: Martin Hitz , Behzad Montazeri, Chidamber and Kemerer's Metrics Suite: A Measurement Theory Perspective, IEEE Transactions on Software Engineering, v.22 n.4, p.267-271, April 1996 [doi>10.1109/32.491650]
• 9: Michelle Cartwright , Martin Shepperd, An Empirical Investigation of an Object-Oriented Software System, IEEE Transactions on Software Engineering, v.26 n.8, p.786-796, August 2000 [doi>10.1109/32.879814]
• 10: Victor R. Basili , Lionel C. Briand , Walcélio L. Melo, A Validation of Object-Oriented Design Metrics as Quality Indicators, IEEE Transactions on Software Engineering, v.22 n.10, p.751-761, October 1996 [doi>10.1109/32.544352]
• 11: Lionel C. Briand , Christian Bunse , John W. Daly, A Controlled Experiment for Evaluating Quality Guidelines on the Maintainability of Object-Oriented Designs, IEEE Transactions on Software Engineering, v.27 n.6, p.513-530, June 2001 [doi>10.1109/32.926174]
• 12: Lionel C. Briand , Sandro Morasca , Victor R. Basili, Defining and Validating Measures for Object-Based High-Level Design, IEEE Transactions on Software Engineering, v.25 n.5, p.722-743, September 1999 [doi>10.1109/32.815329]
• 13: William W. Pritchett, IV, Applying object-oriented metrics to Ada 95, ACM SIGAda Ada Letters, v.XVI n.5, p.48-58, Sept./Oct. 1996 [doi>10.1145/240837.240841]
• 14: V R Basili , R W Selby , D H Hutchens, Experimentation in software engineering, IEEE Transactions on Software Engineering, v.12 n.7, p.733-743, July 1986
• 15: Todd L. Graves , Alan F. Karr , J. S. Marron , Harvey Siy, Predicting Fault Incidence Using Software Change History, IEEE Transactions on Software Engineering, v.26 n.7, p.653-661, July 2000 [doi>10.1109/32.859533]
• 16: G. Bhattacharyya and R. Johnson, Statistical Concepts and Methods, Wiley and Sons, New York, New York. 1977.
• 17: Walsh, T. "A Software Reliability Study Using a Complexity Measure," AFIPS Conference Proceedings, AFIPS Press, 1979.
• 18: Sallie Henry , Dennis Kafura , Kathy Harris, On the relationships among three software metrics, Proceedings of the 1981 ACM workshop/symposium on Measurement and evaluation of software quality, p.81-88, January 1981
• 19: Ward, W., "Software Defect Prevention Using McCabe's Complexity Metric," Hewlett-Packard Journal, April 1989.
• 20: K. Welker and P. Oman, "Software Maintainability Metrics Models in Practice," Crosstalk, Nov/Dec. 1995.

INDEX TERMS

Primary Classification:
  D. Software
  D.3 PROGRAMMING LANGUAGES
      D.3.2 Language Classifications

          Nouns: Ada

Additional Classification:
  D. Software
  D.1 PROGRAMMING TECHNIQUES
      D.1.5 Object-oriented Programming
  D.2 SOFTWARE ENGINEERING
      D.2.8 Metrics
          Subjects: Product metrics

General Terms:
Measurement, Performance