作者：禅与计算机程序设计艺术
1.简介
DevOps (Development and Operations) 是一种文化，一种企业管理理念、一套流程和工具，它强调“客户需求”与“开发者工作”之间的紧密协作，通过集成开发环境和部署流程的自动化实现，让产品开发和运营在一起进行，从而实现业务价值快速增长，并达到可持续的发展目标。
Agile (英语：/ˈædʒəl/ adj.) 是一个由极限编程、需求瞬时反馈、迭代开发、团队自我组织和适应性计划变革等概念提出的敏捷方法论框架。其追求的是快速响应变化、迭代及反馈的能力，目的是在项目启动初期就将所有任务分解成小任务，每个任务在1-4周内完成，并能在几天甚至几小时之内提供反馈，从而尽早发现问题并调整方向，以取得更好的结果。
Project management (PM) refers to the planning, organizing, execution, control, monitoring, analysis, and communication of a project or program to ensure successful outcomes such as product development, service provision, system deployment, etc., based on established objectives and timelines. PM is important because it helps organizations achieve business goals by ensuring that projects are completed within budget, on schedule, and with high quality while respecting stakeholder needs and constraints. PM is one area where