Search result: GB/T 42448-2023
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Systems and software engineering - Functional size measurement - FiSMA 1.1 method
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GB/T 42448-2023
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| Standard ID | GB/T 42448-2023 (GB/T42448-2023) | | Description (Translated English) | Systems and software engineering -- Functional size measurement -- FiSMA 1.1 method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | L77 | | Classification of International Standard | 35.080 | | Word Count Estimation | 23,235 | | Date of Issue | 2023-03-17 | | Date of Implementation | 2023-10-01 | | Issuing agency(ies) | State Administration for Market Regulation, National Standardization Management Committee |
GB/T 42448-2023
ICS 35.080
CCSL77
National Standards of People's Republic of China
System and software engineering functional size measurement
FiSMA1.1 method
FiSMA1.1method
Released on 2023-03-17
2023-10-01 implementation
State Administration for Market Regulation
Released by the National Standardization Management Committee
table of contents
Preface I
Introduction II
1 Range 1
2 Normative references 1
3 Terms and Definitions 1
4 BFC class and BFC type 2 of FiSMA1.1
5 FiSMA1.1 measurement process 6
6 Counting rules for BFC classes 9
7 Units of measurement for functional scale 11
8 Calculating the functional scale of software with FiSMA1.1 method 11
9 Measurement Report 11
10 Transferability from FiSMA1.1 to other FSM methods11
Appendix A (informative) List of terms related to FiSMA1.1 method12
Appendix NA (informative) Application cases of this document 14
Reference 17
foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules for Standardization Documents"
drafting.
This document is identical to ISO /IEC 29881.2010 "Information Technology Software and System Engineering FiSMA1.1 Functional Scale Measurement Method
Law".
The following minimal editorial changes have been made to this document.
---In order to be consistent with the existing standards, the name of the standard is changed to "System and Software Engineering Functional Scale Measurement FiSMA1.1 Method
Law";
--- For the convenience of readers to understand and use, add Appendix NA (informative).
Please note that some contents of this document may refer to patents. The issuing agency of this document assumes no responsibility for identifying patents.
This document is proposed and managed by the National Information Technology Standardization Technical Committee (SAC/TC28).
This document is drafted by. Guangxi Dayi Technology Co., Ltd., China Institute of Electronic Technology Standardization, Shanghai Software Industry Association, National
Application Software Product Quality Inspection and Testing Center, China Academy of Aerospace Systems Science and Engineering, Shenzhen Saixi Information Technology Co., Ltd., Guangdong
Yi'an Civil Air Defense Engineering Technology Co., Ltd., Shanghai Baosight Software Co., Ltd., Daopu Information Technology Co., Ltd., Yunnan Power Grid Co., Ltd.
Company Information Center, Shanghai Xuansi Intelligent Technology Co., Ltd., China National Petroleum Corporation Planning Institute, Shandong Provincial Computing Center
(National Supercomputing Jinan Center), Zhejiang Institute of Electronic Information Product Inspection, Shandong Shanke Digital Economy Research Institute Co., Ltd., Shanghai
Computer Software Technology Development Center, Beijing Software Cost Evaluation Technology Innovation Alliance, Shanghai Tongsting Software Technology Co., Ltd., Beijing Zhongji
Datalink Technology Co., Ltd., Beijing Software and Information Service Exchange Co., Ltd.
The main drafters of this document. Deng Zixian, Li Wenpeng, Huang Jiayu, Su Wei, Wen Jiakai, Wang Wei, Wang Gongtao, Yang Genxing, Zhang Yangyang, Liu Lin,
Ji Yongwei, Nong Qiang, Wang Zeyao, Li Min, Zhou Changhuai, Gong Jiayu, Yu Tieqiang, Lu Xue, Li Gang, Li Yuhong, Pang Yili, Li Qing, Liu Pengfei, Lou Li,
Zhou Changlun, Che Jiangtao, Zhou Mingle, Sun Jinyang, Dai Hanling, Wu Dilong, Manina, Li Qian, Dong Guantao, Li Ting, Feng Kuan, Xu Jing, Li Lingfan,
Li Changqiu, Zhao Zhiyong, Li Mo, Fude Peng, Cai Lizhi, Liu Fen, Ouyang Shusheng, Hao Lin, Zhuang Yuan.
introduction
Functional size is an essential measure when comparing software development activities and alternatives. In addition to estimating size and
In addition to analyzing productivity, functional scale has been proven useful for planning, tracking, controlling, and contracting projects. Because functional size measurement
For end users, FSM can also make scope management and change management more efficient, more reliable and easier to understand.
Under similar environmental conditions, technical conditions, and quality requirements, calculations can be evaluated based on the correlation between functional scale and workload.
The accuracy of the parameters can be used to evaluate the usefulness of the FSM method. Such an assessment may indicate the need to justify the calculation parameters used to derive the functional size.
1.1, FiSMA 1.1) is a general, parametric FSM approach applicable to all software types. FiSMA1.1 is tested by Finnish software
From.1997 to.2003, more than 600 software development projects were measured with this method.
The current limit value of the counting parameter used by FiSMA1.1 is obtained from its predecessor experience 2.0FPA, which has been statistically confirmed to be accurate
sex. Updates may be made in future versions of the FiSMAFSM method if data collection and analysis prove necessary.
If the source data are collected to the recommended level of detail, the results obtained by FiSMA1.1 and Empirical2.0FPA are largely
Interchangeable.
FiSMA1.1 method is completely based on user functional requirements (FUR). User requirements can be grouped into functional (what tasks the software performs)
tasks) and non-functional (how the software must perform tasks, including quality requirements). For the FiSMA1.1 method, the measurement object is
User functional requirements. Some FSM methods are process-oriented, while FiSMA1.1 is service-oriented. A process-oriented approach requires identifying
All functional processes supported by the software. In contrast, a service-oriented approach (such as the FiSMA1.1 approach) needs to recognize that the software provides
all the different services offered.
The FiSMA1.1 relationship chain of users and developed software segments involves user needs and services as shown in Figure 1.
Figure 1 Relationship between users and software segments
Every reader of this document can understand sizing measurements for their own reasons, but the typical user perspective is estimating work for a software project
quantity. Other important industry applications of FSM are shown in Figure 2.
Figure 2 Common purposes of functional size measurement
This document takes operability as the basic starting point for consideration, and an informative appendix NA "Application Cases of this Document" is added to ensure that this document
The software can be instructive in actual use.
System and software engineering functional size measurement
FiSMA1.1 method
1 Scope
This document specifies the definitions, conventions and activities of the FiSMA1.1 methodology.
This document is intended for those who use the FiSMA 1.1 method to measure the functional size of software. The FiSMA1.1 method is designed to provide
Use by personnel related to software acquisition, development, use, support, maintenance, and auditing. FiSMA1.1 method to assess user functional requirements
Based on this, the functional scale of the software segment is measured from the user's perspective.
1.1 Fields of application of the FiSMA1.1 method
The FiSMA1.1 method is suitable for measuring software in any functional domain.
1.2 Limitations of the FiSMA1.1 method
The FiSMA1.1 method has no limitations in the type or quality of the software being measured.
1.3 FSM scope of FiSMA1.1 method
The functional size measurement range of the FiSMA1.1 method depends on the purpose of the measurement software. When using the FiSMA1.1 method, the covered
Various user functional requirements depend on the counting purpose and may therefore include user functional requirements for a software segment or a group of software segments. in the van
Each software segment within the scope must be measured separately. If there is more than one software segment in a project, it is necessary to accumulate all the functional specifications of the software.
mold. The scope of an FSM instance is often a subset of the overall user requirements, including only the user functional requirements, that is, the services that the software must perform.
tasks and tasks. The purpose of the FSM determines the user functional requirements that the FSM instance will include.
Note 1.If the purpose of FSM is to determine the size of the first release of the software segment, then the scope of use of the FiSMA1.1 method includes only the first release of the software segment.
User functional requirements.
Note 2.If the purpose of the FSM is to determine the supported size of an installed software package, then the FSM instance only includes the
User functional requirements.
Note 3.The FiSMA1.1 method only measures the scale of user functional requirements within the above range.
2 Normative references
The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references
For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
this document.
ISO /IEC 14143-1.2007 Information Technology Software Measurement Functional Size Measurement Part 1.Concept Definition
of concepts)
Note. GB/T 18491.1-2001 Information Technology Software Measurement Functional Scale Measurement Part 1.Concept Definition (ISO /IEC 14143-1.
1998, IDT)
3 Terms and Definitions
The terms and definitions defined in ISO /IEC 14143-1.2007 and the following apply to this document.
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