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According to The NIST Definition of Cloud Computing, [3] there are three service models associated with cloud computing: infrastructure as a service (IaaS), platform as a service (PaaS), and software as a service (SaaS). The concept of ITaaS as an operating model is not limited to or dependent on cloud computing.
The US National Institute of Standards and Technology (NIST) defines infrastructure as a service as: [3]. The capability provided to the consumer is provision processing, storage, networks, as well as other fundamental computing resources where the consumer is able to deploy & run arbitrary software, which can include operating systems and applications.
Much service-delivered content is dependent on a session to provide much of the context that the user (client) needs to understand answers to questions. For example, using current HTTP internet protocols, a GET request to retrieve information identified by a URI, such as a web page, a client (a human or a machine) may have access information ...
IaaS requires time and expertise to make use of the infrastructure in the form of operating systems and applications. [4] Platform as a service (PaaS) includes the operating system and middleware, but not the applications. [5] [6] SaaS providers typically use PaaS or IaaS services to run their applications. [5]
The following is a comparison of cloud-computing software and providers. IaaS (Infrastructure as a service) ... PaaS providers which can run on IaaS providers ...
Google Cloud Storage is an online file storage web service for storing and accessing data on Google Cloud Platform infrastructure. [1] The service combines the performance and scalability of Google's cloud with advanced security and sharing capabilities. [2] It is an Infrastructure as a Service , comparable to Amazon S3.
Alibaba Cloud offers cloud services that are available on a pay-as-you-go basis, and include elastic compute, data storage, relational databases, big-data processing, DDoS protection and content delivery networks (CDN). It is the largest cloud computing company in China, [2] and in Asia Pacific according to Gartner. [3]
Service-oriented architecture (SOA) and the widespread use of APIs have rendered the platform on which the data resides as irrelevant. [3] Data as a service as a business model is a concept when two or more organizations buy, sell, or trade machine-readable data in exchange for something of value. [4]