IaaS

Infrastructure as a service (IaaS) is a cloud computing platform that provides corporations access to computing resources such as servers, storage and networking. Corporations use their own platforms and applications within a service provider’s infrastructure.

• Instead of purchasing hardware outright, corporations pay for IaaS on demand
• Infrastructure is scalable depending on processing and storage needs
• Saves corporations the costs of buying and maintaining their own hardware
• Because data is on the cloud, there can be no single point of failure
• Enables the virtualization of administrative tasks, freeing up time for other work.

PaaS

Platform as a service (PaaS) is a cloud computing platform that provides corporations a cloud environment in which they can develop, manage and deliver applications. In addition to storage and other computing resources, corporations are able to use prebuilt tools to develop, customize and test their own applications.

• PaaS provides corporations with a platform with tools to test, develop and host applications
• Enables corporations to focus on development without having to worry about underlying infrastructure
• Providers manage security, operating systems, server software and backups
• Facilitates collaborative work even if teams work remotely

SaaS

Software as a service (SaaS) is a cloud computing platform that provides corporations with access to a service provider’s cloud-based software. Corporations do not install applications on their local devices. Instead, the applications reside on a remote cloud network accessed through the web or an API. Through the application, corporations can store and analyze data and collaborate on projects.

• SaaS provides corporations with software and applications via a subscription model
• Corporations do not have to manage, install or upgrade software; SaaS service providers manage them
• Data is secure in the cloud; equipment failure does not result in loss of data
• Use of resources can be scaled depending on service needs
• Applications are accessible from almost any internet-connected device, from virtually anywhere in the world