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On the Seven Misconceptions about Functional Size Measurement
Date
2016-10-07
Author
ÖZKAN, BARIŞ
Demirörs, Onur
Metadata
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Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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Among the various approaches to software size measurement, Functional Size Measurement has been widely recognized for its usability in early phases of software development cycles and its independence from implementation language, development method and technology. Starting from its introduction with the original Function Point Analysis method in 1979, functional size has been a favored input to estimation and productivity models. As a result of the search for solutions to emerging measurement needs and the advancements in the discipline of software measurement, FSM concepts have been redefined and measurement methods have matured with notable contributions from the ISO standardization process.
Subject Keywords
Software Measurement
,
Functional Size
,
Functional Size Measurement
,
Software Estimation
URI
https://hdl.handle.net/11511/57364
DOI
https://doi.org/10.1109/iwsm-mensura.2016.17
Conference Name
Joint Conference of 26th International Workshop on Software Measurement (IWSM) / 11th International Conference on Software Process and Product Measurement (Mensura)
Collections
Graduate School of Informatics, Conference / Seminar
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Functional size has been favored as a software characteristic that can be measured early and independent of language, tools, techniques and technology: hence has many uses in software project management. It has been about three decades since Albrecht introduced the concept of functional size. However, Functional Size Measurement (FSM) has not been a common practice in the software community. The problems with FSM method structures and practices have been discussed to be the major factors to explain this sit...
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Although functional size is the primary input for effort and cost estimation formulas, the relation between functional size and development effort does not always hold in practice. Calculating the magnitude of functional similarity is perceived as a partial solution to overcome this problem. In this study we applied different approaches to identify the magnitude of functional similarity in five projects. The applicability of these approaches is evaluated by observing the impact of functional similarity on e...
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The reliability of Functional size is crucial for effort and cost estimation in software development projects. However, estimation results may differ because of the errors made in the measurement process. This research proposes an error prevention model for COSMIC Functional Size Measurement method to increase the reliability of the measurements. The model has two main suggestions; first, to use the types of the functional processes during the measurement to prevent errors, and the second, to use a cardinal...
An experimental study on the conversion between IFPUG and COSMIC functional size measurement units
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The adoption of functional size measurement (FSM) methods in software organizations is growing. In particular, special attention is being paid to the COSMIC method, because of its novelties against 1st generation FSM methods such as IFPUG FPA. One of the main problems facing organizations wanting to use COSMIC is how to properly convert the software functional size of the projects in their portfolio measured by the previously adopted FSM method to the size measured by the new method.
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Top, Ozden Ozcan; Demirörs, Onur; Ozkan, Baris (2009-08-29)
Accuracy of the functional size is critical in software project management, since functional size is the most prevalent input for effort and cost estimation models. Functional size measurement is performed based on standardized manuals; however, the accuracy of FSM results is still based on the knowledge and cautions of the measurers. In this study we performed a multiple case study to identify the reliability of COSMIC and to observe the frequently encountered errors during functional size measurement. Pro...
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B. ÖZKAN and O. Demirörs, “On the Seven Misconceptions about Functional Size Measurement,” presented at the Joint Conference of 26th International Workshop on Software Measurement (IWSM) / 11th International Conference on Software Process and Product Measurement (Mensura), Berlin, GERMANY, 2016, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/57364.