Question

among 3 (three) cloud services : IAAS, SAAS, PAAS, which one is the most convenient to be used by customer and why?

Answer 1

Among the three models of cloud services- IaaS, PaaS, and SaaS, in cloud computing technology, SaaS is the one the most convenient to be used by customers and the reason being it requires almost zero administration, management, monitoring, maintenance, procurement, provisioning, deployment, release, creation, set-up, configuration, powering, cabling, racking and stacking of the Information Technology (IT) infrastructure with no on-premise data center of the customer's organization.

IaaS: Infrastructure as a Service provides only the IT Infrastructure to the customers, but the creation and management of the platform and the software on top of the platform are customers' responsibility.
PaaS: Platform as a Service provides both, the underlying IT Infrastructure and the Platform for the customers to create and deploy their web and mobile applications, software, and solutions on top of the Platform the vendor managing it.
SaaS: Software as a Service covers both, IT Infrastructure and the Platform and provides software services and solutions for the customers to simply, quickly, directly use them easily, conveniently, effectively, efficiently, redundantly, reliably, high availability, seamlessly, scalably, durably, flexibly, with failover taken care, disaster recovery handled, with multi- region, datacenter, availability zones or sets, going global in minutes on a pay-as-you-go pricing model with almost at the cheapest price. It handles or the public cloud service provider or vendor manages all the factors or components such as the applications, data, runtime, middleware, OS, virtualization, servers, storage, and networking, thus giving customers the convenience, comfort, and saving their time. Whereas in PaaS the customer is required to manage at least applications and data, and in IaaS, the customer is required to manage applications, data, runtime, middleware, and OS.