Cloud computing is a model for enabling ubiquitous, convenient, and on-demand network access to a shared pool of resources. These computing resources can be rapidly provisioned and released with minimal effort. The Cloud model is composed of three service models, seen below:Software as a Service (SaaS)
Vendors:Adobe Connect, ServiceNow, Google, Salesforce, Microsoft O365, MaaS360 Show
Common SaaS Use-Case:Replaces traditional on-device software. There are a wide variety of cases including Customer Relationship Management, Video Conferencing, Email, Collaboration, and more. SaaS services allow direct delivery of application level capabilities to the end user with very little requirement for IT support resources primarily focused on compliance management at the application layer. SaaS Model Customer Responsibilities include:
Platform as a Service (PaaS)
Vendors:ESRI Managed Services Cloud, MicroPact, Oracle Federal Cloud, Cloud.gov Common PaaS Use-Case:Increases developer productivity and utilization rates while also decreasing an application’s time-to-market. Consumers of PaaS services will need minimum IT services administration staff since management of the Operating Systems, Middleware, Databases are covered by the vendor. PaaS Model Customer Responsibilities include:
Infrastructure as a Service (IaaS)Deploy:
Vendors:Amazon Web Services, Microsoft, Azure, IBM SoftLayer, Virtustream, Akamai Common IaaS Use-Case:Extends current data center infrastructure for temporary workloads (e.g. increased Christmas holiday site traffic). Consumers of IaaS services will be required to have skilled IT professionals on staff or available via contract to manage and maintain Operating Systems, Middleware, Databases, Operations and Compliance Management. IaaS Model Customer Responsibilities include:
Shared Responsibility Model:SaaS
PaaS
IaaS
What are the service models and layers of cloud computing?The 4 layers of Cloud. Infrastructure as a Service (IaaS) The basic layer of cloud is the infrastructure –IaaS (Infrastructure as a service). ... . Platform as a Service (PaaS) The second layer of the cloud is the platform – the PaaS (Platform as a service). ... . Software as a Service (SaaS) ... . Business Process Outsourcing (BPO). What are the 3 main service models of cloud computing?There are three major cloud service models: software as a service (SaaS), infrastructure as a service (IaaS) and platform as a service (PaaS).
What are the three types of service model?Cloud computing is offered in three different service models which each satisfy a unique set of business requirements. These three models are known as Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS).
Which is the most widely used service model in cloud computing?Software as a Service (SaaS) is the most common and widely used cloud service model.
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