COSMIC Function Points: Theory and Advanced Practices by Reiner Dumke

By Reiner Dumke

Designed to comply to the ISO/IEC common 14143, the typical software program dimension overseas Consortium (COSMIC) functionality element approach has turn into the key estimation method in keeping with foreign criteria for development software-intensive structures. COSMIC functionality issues: idea and complicated Practices offers a state of the art examine present and rising practices within the overseas software program size neighborhood. The editors have assembled a world panel of specialists who aspect the stairs for measuring the practical measurement of software program and constructing undertaking estimates with stronger accuracy. They clarify tips on how to review and examine structures to enhance software program reuse and improvement. referring to the fundamental points of the subsequent new release of useful measurement dimension tools, the publication delineates most sensible estimation and size practices in addition to the improvement of benchmarks for caliber development, together with Six Sigma. this whole source covers software program size and estimation tools and practices for embedded structures, enterprise purposes, communications software program, and keep an eye on platforms. every one bankruptcy offers the sensible knowing required to create, enforce, standardize, distribute, and adapt practical dimension size and venture estimation to nearly any software program context. compliment for:… a superb evaluate … presents a robust wisdom historical past for either practitioners and researchers. … With its large history, it's necessary for essentially imposing and effectively adapting different sensible sizing equipment … . The COSMIC functionality element recommendations provided during this ebook may help you to enforce, grasp, and increase your estimation process.—Christof Ebert, dealing with Director, Vector Consulting providers

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Important work in the area of selecting the right functional size measurement method has been done with ISO standards 14143-3 (ISO 2002), 14143-4 (ISO 2000), and 14143-5 (ISO 2004). Unfortunately, the final versions of these standards are not published yet. Part 3 will define verification methods for the following: ◾◾ ◾◾ ◾◾ ◾◾ ◾◾ Repeatability and reproducibility Accuracy Convertibility Discrimination thresholds Applicability of functional domains Part 4 will specify a reference model consisting of the following: ◾◾ A classification framework for reference user requirements (RURs) ◾◾ Guidance on selecting reference FSM methods against which an FSM method can be compared Part 5 will describe a framework to determine functional domains for use with functional size measurement.

Thus, the automatic function point counting is possible. Another approach in order to support the automatic measurement of Full Function Points version 1 has been developed by Oppermann (2001) as a diploma thesis in cooperation with Siemens and the University of Magdeburg. After the evaluation of the applicability of full function points at Siemens (Schweikl et al. 2000), it was decided to develop a tool to automate the counting. Unfortunately, after further investigations it has been found that fully automated counting support is not possible because of the structure and variety of the Siemens specification documents.

A software can be divided into several layers, representing different views on the software. 9 visualizes a possible variant. Thus, even measurements of distributed and complex systems become possible (Abran et al. 1999). 10): ◾◾ ◾◾ ◾◾ ◾◾ Entries Exits Reads Writes The standard unit of measurement is 1 Cfsu (COSMIC functional size unit) and is equivalent to one data movement. The size of a system then is the sum of all data movements. 9 COSMIC full function point layer concept. (Adapted from ISO.

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