Application of Function Point Estimating

Chang Hong Zhou

doi:10.4028/www.scientific.net/AMM.644-650.3357

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 644-650Application of Function Point Estimating

Application of Function Point Estimating

Abstract:

Function point estimating is an important method for system of effort estimation. This article is based on a telecommunication surveillance module system-integrated monitoring module as example. It explains how this estimation method is applied in the project measurement process in detail.Function Point AnalysisFunction point analysis evaluates the functionality of a software system from the software end users perspective. Software functionality comes down to five basic functional elements^[1], two of which represent end user demand for data: internal logical files (ILF) and external interface files (EIF). The other three are data gathering and processing features: external inputs (EI), external outputs (EO), external inquiries (EQ)^[2].To determine the complexity of each functional element, the following data items are defined: record element type (RET), file type referenced, (FTR), data e1ement type (DET)^[3]. To determine all functionalities complexity level, each data and transactional capabilities is assigned with low, average and high level based on standard matrix, see table 1 complexity matrix^[4]. After determining the complexity of each feature, using the complexity value defined in table 2^[5] multiply by the corresponding function point counts, accumulate to get the totals.Table 1: complexity matrixTable 2: IFPUG unadjusted function point basis

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Periodical:

Applied Mechanics and Materials (Volumes 644-650)

Pages:

3357-3360

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.644-650.3357

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Online since:

September 2014

Authors:

Chang Hong Zhou*

Keywords:

Function Point Analysis, Workload Estimation

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References

[1] Remi-Armand Collaris, Eef Dekker. Use Case Point Estimate Software Cost: Directly use transaction logging cases. http: /www. uml. org. cn/RequirementProject/200908111. asp, 2009-08.

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[2] Jin Zhang CMMI function point estimation method: EI, EQ and EO. http: /www. uml. org. cn/cmm/200808124. asp, 2008-08.

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[3] Information on http: /www. uml. org. cn/xmgl/200902122. asp.

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[4] Roger Heller．An Introduction to Function Point Analysis[EB/OL]．http: /www. qpmg. com, 2004-07.

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[5] Function Point Analysis: Measurement Practices for Successful Software Projects （USA）David Garmus & David Herron Addison Wesley/Pearson.

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