理学 云计算 释 software as a service 软件即服务 一种云交付模型。云交付模型是指云提供者提供的具体的、事先打包好的信息技术（informaiton technology，IT）资源组合。软件即服务即云提供者把软件程序作为共享的云服务，作为“产品”或者通用的工具来对外提供服务。这里的软件无需用户安装，仅需通过一个网页浏览器或者精简的客户端来访问。
软件工程 释文 software as a service, SaaS 软件即服务
- William Randolph Hearst
- William Richard Tolbert
- William Robert Freudenburg
- William Robertson
- William Rose
- William Rowan Hamilton
- Williams
- William Saroyan
- Williamsburg
- William Schuman
- William Scott
- William Sealy Gosset
- williams elder
- William Shakespeare
- William Somerset Maugham
- Williamson
- Williamson ether synthesis
- William Southam
- William Spencer Vickrey
- Williams p＋1 factorization method
- William Stafford
- William Standish Knowles
- William Stanley Merwin
- William Steinberg
- William Stetson Merrill