T/CCUA 004-2020 Software maintenance cost measurement specification
T/CCUA 004-2020 Software maintenance cost measurement specification
Basic Information
Scope
Scope: This standard specifies the method and calculation process for measuring the software operation and maintenance (O&M) costs of informatization projects. This standard is applicable to all organizations involved in informatization operation and maintenance services for measuring the costs of software O&M services. Main technical content: This standard specifies the method and calculation process for measuring the software O&M costs of informatization projects. It is applicable to all organizations involved in informatization operation and maintenance services for measuring the costs of software O&M services. Regarding some technical issues raised during the drafting of this standard, the explanations are as follows: 1. Software O&M costs: In this standard, based on financial practices, software O&M expenses are divided into direct costs and indirect costs. Considering the characteristics of the software industry, direct and indirect costs are further divided into human costs and non-human costs, with clear definitions of various costs provided. 2. Calculation process: The process of measuring the software O&M costs of informatization projects defined in this standard includes three parts: scale measurement, workload measurement, and cost measurement. Among them, the software scale is measured using the function point method included in international standards for function scale estimation. 3. Main reference standards [1] GB/T 5271.1-2000 Information Technology - Vocabulary - Part 1: Basic Terms [2] GB/T 11457-2006 Information Technology - Software Engineering Terms [3] GB/T 29264-2012 Information Technology Services - Classification and Codes [4] GB/T 36964-2018 Software Engineering - Software Development Cost Measurement Specification [5] SJ/T 11463-2013 Software R&D Cost Measurement Specification [6] SJ/T 11623-2016 Information Technology Services - Practitioner Competence Specification [7] ISBSG, Practical Project Estimation 2nd Edition [8] ISO/IEC 20926 So