Microsoft Azure is Microsoft's cloud computing platform. Through Azure, organizations can acquire Infrastructure-as-a-Service (IaaS), Platform-as-a-Service (PaaS), and Software-as-a-Service solutions (SaaS). Azure administrators can build, test, deploy, and manage their applications and services through Microsoft Azure, and they can access resources such as virtual computing, analytics, storage, and networking. Microsoft Azure's largest competitor is Amazon Web Services, but Azure generally proves beneficial to those operating within a Microsoft ecosystem and using utilities such as Microsoft Office 365. As a cloud computing service, Microsoft Azure makes it easier for organizations to leverage and deploy large amounts of resources on-the-fly — paying only for the resources that are used and needed.