Cloud Service Models : IaaS - PaaS – SaaS

Cloud Computing has three models:

IaaS – Infrastructure as a Service

PaaS – Platform as a Service

SaaS – Software as a Service

IaaS – Infrastructure as a Service

IaaS or Infrastructure as a Services is a set of core capabilities like compute, storage, networking and virtualization. With IaaS implementation there is no need for the organization to have an onsite data center. It would take days to spin up a server in a client’s data center, whereas IaaS providers deploy and manage pre-configured and virtualized hardware like EC2 in Amazon Web Services and enable users to spin up virtual machines in minutes. IaaS also enables organizations to run any amount of workload without really caring about the compute capabilities when they are in cloud as they can scale in or scale out their compute requirements based on the workload.

Oracle’s IaaS offerings:

PaaS – Platform as a Service

PaaS or Platform as a Service allows developers, IT professionals, and business leaders to develop, test, and deploy the next generation of applications in the cloud in a secure, cost-effective manner that speeds time to market and increases competitive advantage. PaaS provides computing platforms which typically include operating system, programming language execution environment or runtime environments and database server. It is a layer on top of IaaS as the second thing you demand after Infrastructure is Platform. Developers in an organization can now spend more time coding, testing and deploying their application instead of thinking about creating environments for code development and testing.

Oracle’s PaaS offerings:

SaaS – Software as a Service

Oracle’s SaaS offerings: