Infrastructure as a Service (IaaS) Definition

Infrastructure as a Service (IaaS) Definition Infrastructure as a service (IaaS) is a form of cloud computing that provides virtualized computing resources over the internet. IaaS is one of the three main categories of cloud computing services, alongside software as a service (SaaS) and platform as a service (PaaS). IaaS architecture and how it works In an IaaS model, a cloud provider hosts the infrastructure components traditionally present in an on-premises data center, includin...
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Storage as a Service (SaaS) Definition

Storage as a Service (SaaS) Definition Storage as a Service is a business model in which a large company rents space in their storage infrastructure to a smaller company or individual. In the enterprise, SaaS vendors are targeting secondary storage applications by promoting SaaS as a convenient way to manage backups. The key advantage to SaaS in the enterprise is in cost savings -- in personnel, in hardware and in physical storage space. For instance, instead of maintaining a large...
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Software as a Service (SaaS) Definition

Software as a Service (SaaS) Definition Software as a service (SaaS) is a software distribution model in which a third-party provider hosts applications and makes them available to customers over the Internet. SaaS is one of three main categories of cloud computing, alongside infrastructure as a service (IaaS) and platform as a service (PaaS). SaaS removes the need for organizations to install and run applications on their own computers or in their own data centers. This eliminates the e...
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SaaS Definition

SaaS Definition What is SaaS? SaaS stands for at least three different "as-a-service" offerings. The original use of the acronym was to refer to Software as a Service. The term has since been used in reference to Storage as a Service and Security as a Service. Other "as-a-service" offerings include Infrastructure as a Service (IaaS) and Platform as a Service (PaaS). The combination of these two with Software as a Service is sometimes called the SPI model (for SaaS, PaaS, IaaS). The wh...
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