Cloud

Cloud deployment refers to the enablement of SaaS (software as a service), PaaS (platform as a service) or IaaS (infrastructure as a service) solutions that may be accessed on demand by end users or consumers. [Source: Atos]

refers to the enablement of SaaS (software as a service),

Platform as a service (PaaS) is a cloud computing model in which a third-party provider delivers hardware and software tools -- usually those needed for application development -- to users over the internet. [Source: TechTarget]

(platform as a service) or

Infrastructure as a service (IaaS) is a form of cloud computing that provides virtualized computing resources over the internet. [Source: TechTarget]

(infrastructure as a service) solutions that may be accessed on demand by end users or consumers. [Source: Atos]