服务（Service）
为满足客户的需求，供方和客户之间接触的活动及供方内部活动所产生的结果。
包括供方为客户提供人员劳务活动完成的结果；供方为客户提供通过人员对实物付出劳务活动完成的结果；供方为客户提供实特使用活动完成的结果。
（GB/T 15624.1-2003 服务标准化工作指南 第1部分 总则）
Results produced from activities between the supply side and customers and within the supply side, to meet customer needs, including results from the supply side providing personnel labor activity to the customer, results from the supply side providing personnel labor activity of material objects the customer, and results from the supply side providing utility activity of material objects to the customer.
服务标准化工作指南 (Guidelines for standardization of services)
https://std.samr.gov.cn/gb/search/gbDetailed?id=71F772D802DFD3A7E05397BE0A0AB82A
信息技术（Information Technology）
用于管理和处理信息所采用的各种技术的总称，主要应用计算机科学和通信技术来设计、开发、安装和实施信息系统及应用软件。IT也常用被称为信息和通信技术，主要包括计算机技术、通信技术和传感技术。
A generic term for an assortment of technologies used in information management and processing, mainly utilizing computer science and communication technology to design, develop, install, and implement information systems and application software. IT is also frequently referred to as information and communication technology, including computer technology, communication technology, and sensor technology.
What is Information Technology? 2024 Guide
https://www.coursera.org/articles/what-is-information-technology
信息技术服务（Information Technology Service）
供方为服务需方提供如何开发、应用信息技术的服务，以及供方以信息技术为手段提供支持需方业务活动的服务。（GB/T 29264-2012 信息技术服务 分类与代码）
注1： 主要表现为面向信息技术的服务和基于信息技术的服务。
注2： 依赖于IT或要求掌握与IT相关的管理、设计、开发、集成实施、运维等技术、方法或手段，以满足客户应用需求为目标，面向信息系统全生命周期各个环节提供支撑业务流程活动的运营服务。
The supplier provides to the demander services in regards to how to develop and apply information technology, as well as support to its business activities via means of information technology. [GB/T 29264 IT Services classification and codes]
Note1: Mainly represented by IT-oriented service and IT-based service
Note2: Dependent on IT or master of technology, means, or methods of IT-related management, design, development, integration and implementation, operation and maintenance, etc., aimed at satisfying customer's application needs, providing service of design, development, integration implementation, operation and maintenance, etc., towards various links of a full information system lift cycle; or providing operation and management service of supporting business process activities, via means of IT, towards customer's service operation needs.
中文标准名称：信息技术服务 分类与代码
Information technology service - Classification and code
https://openstd.samr.gov.cn/bzgk/gb/newGbInfo?hcno=1D8487A30DD439F2D882C282B79F53C5
信息系统（Information System）
信息系统是由计算机硬件、网络和通信设备、计算机软件、信息资源、信息用户和规章制度组成的以处理信息流为目的人机一体化系统。
An information system is a human-machine integrative system composed of computer hardware, network and communication equipment, computer software, information resources, information users, and regulations and rules, to process information data.
What Is an Information System?
https://opentextbook.site/informationsystems2019/chapter/chapter-1-what-is-an-information-system-information-systems-introduction/
业务流程（Business Process）
业务流程是为达到特定的价值目标面由不同的人别共同完成的一系列活动。活动之间不仅有严格的先后顺序限定，而且活动的内容、方式、责任等也都必须有明确的安排和界定，以使不同活动在不同角色之间进行流转成为可能。
The business process is a series of activities completed by different personnel, respectively doing their tasks, to achieve specific value objectives. there are not only strict sequential limits among these activities, but their contents, methods, and responsibilities all require explicit arrangement and definition, to enable the possible transfer of different activities in many roles.
WHAT IS A BUSINESS PROCESS? DEFINITION, EXAMPLES, AND ADVANTAGES
https://blog.processology.net/what-is-a-business-process
