Global public IT cloud services revenue 2016-2023, by segment

In 2023, the global spending on public IT cloud services amounted to approximately 669 billion U.S. dollars in total. Software as a service (SaaS) spending is the largest segment with revenues of around nearly 413 billion U.S. dollars. This growth is driven by organizations across the world replacing their legacy business applications with SaaS applications that are more data-driven and a more appropriate fit for modern cloud architectures. What are SaaS, PaaS, and IaaS?SaaS, Paas, and IaaS are different types of cloud service models. Depending on how much an organization wants to manage its information technology (IT) infrastructure by itself, it can choose one or more of the three service types. SaaS is the most used option for organizations and includes applications, whereas PaaS delivers a framework for developers to build applications. Finally, IaaS is entirely self-service for accessing and monitoring computers. Advantages of cloud service modelsAll these different service models are delivered over the internet and managed to varying degrees by third-party vendors. In choosing one or more of these cloud service models and relying less on running business applications on premises, organizations can spend less money on hardware and software. They can also manage applications with greater flexibility and speed while reducing vendor lock-in.

于2023年，全球对公共IT云服务的支出总额约为6690亿美元。软件即服务（SaaS）支出是最大的细分市场，其收入约为4130亿美元。这一增长得益于全球范围内的组织正在用更加数据驱动且更适合现代云架构的SaaS应用替换其传统的业务应用程序。何谓SaaS、PaaS和IaaS？SaaS、PaaS和IaaS是不同的云服务模式。根据组织自行管理信息技术（IT）基础设施的程度，可以选择其中一种或多种服务类型。SaaS是组织最常用的选项，包括应用程序，而PaaS则为开发者提供构建应用程序的框架。最后，IaaS提供完全自助服务，用于访问和监控计算机。云服务模型的优势：所有这些不同的服务模型都通过互联网提供，并由第三方供应商以不同程度进行管理。在选取一种或多种云服务模型并减少在本地运行业务应用程序的依赖时，组织可以在硬件和软件上的支出减少。他们还可以以更大的灵活性和速度管理应用程序，同时减少对供应商的锁定。