was then called framework-as-a-service (later called platform-as-a-service) covering the importance of a market of providers based on an open-source reference model.

The original intent of PaaS was to simplify the writing of code, with the infrastructure and operations handled by the PaaS provider. Originally, all PaaSes were in the public cloud. Because many companies did not want to have everything in the public cloud, private and hybrid PaaS options (managed by internal IT departments) were created.

PaaS provides an environment

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