Abstract
Software size measures are probably the most frequently used metrics in software development projects. One of the most popular size measurement methods is the IFPUG Function Point Analysis (FPA), which was introduced by Allan Albrecht in the late-1970’s. Although the method proved useful in the context of cost estimation, it focuses only on measuring functional aspects of software systems. To address this deficiency, a complementary method was recently proposed by IFPUG, which is called Software Non-functional Assessment Process (SNAP). Unfortunately, the method is still new and we lack in-depth understanding of when and how it should be applied.
The goal of the case study being described in the paper was to investigate how FPA and SNAP measurement methods relate to each other, and provide some early insights into the application of SNAP to measure the non-functional size of applications.
The results of the study show that SNAP could help mitigating some well-known deficiencies of the FPA method. However, we have also identified some potential problems related to applying SNAP in a price-per-size-unit pricing model.
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References
Aguiar, M.: When metrics mean business. In: Proceedings of the 9th Software Measurement European Forum, pp. 1–12 (2012)
Albrecht, A.J.: Measuring application development productivity. In: Proceedings of the Joint SHARE/GUIDE/IBM Application Development Symposium, pp. 83–92 (October 1979)
Conover, W.J.: Practical Nonparametric Statistics, 3rd edn. John Wiley & Sons (1999)
IFPUG. Function Point Counting Practices Manual, Release 4.3.1 (2010) ISBN 978-0-9753783-4-2
IFPUG. Software Non-functional Assessment Process (SNAP) — Assessment Practices Manual, Release 2.2 (2014) ISBN 978-0-9830330-9-7
ISO/IEC. 25010: 2011: Systems and software engineering–Systems and software Quality Requirements and Evaluation (SQuaRE)–System and software quality models (2011)
Kopczynska, S., Nawrocki, J.: Using non-functional requirements templates for elicitation: A case study. In: 2014 IEEE 4th International Workshop on Requirements Patterns (RePa), pp. 47–54. IEEE (2014)
Kopczynska, S., Nawrocki, J., Ochodek, M.: Software development studio—Bringing industrial environment to a classroom. In: 2012 First International Workshop on Software Engineering Education based on Real-World Experiences (EduRex), pp. 13–16. IEEE (2012)
Nawrocki, J., Olek, Ł., Jasinski, M., Paliświat, B., Walter, B., Pietrzak, B., Godek, P.: Balancing agility and discipline with XPrince. In: Guelfi, N., Savidis, A. (eds.) RISE 2005. LNCS, vol. 3943, pp. 266–277. Springer, Heidelberg (2006)
Tichenor, C.: A new metric to complement function points. CrossTalk—The Journal of Defense Software Engineering 26(4), 21–26 (2013)
Yin, R.K.: Case Study Research: Design and Methods. SAGE Publications (2003)
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Ochodek, M., Ozgok, B. (2015). Functional and Non-functional Size Measurement with IFPUG FPA and SNAP — Case Study. In: Silhavy, R., Senkerik, R., Oplatkova, Z., Prokopova, Z., Silhavy, P. (eds) Software Engineering in Intelligent Systems. Advances in Intelligent Systems and Computing, vol 349. Springer, Cham. https://doi.org/10.1007/978-3-319-18473-9_3
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DOI: https://doi.org/10.1007/978-3-319-18473-9_3
Publisher Name: Springer, Cham
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