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Cloud Computing (Cloud Properties (Multitenancy (An architecture in which…
Cloud Computing
Cloud Properties
Multitenancy
An architecture in which a single instance of a software application serves multiple customers. Each customer is called a tenant. Tenants may be given the ability to customize some parts of the application, such as color of the user interface (UI) or business rules, but they cannot customize the application's code.
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Scalability
Represents a characteristic of a system, network or process which indicates the ability to easily handle the increase of data management.
Reliability
The ability of a system or component to perform the duties required under specified conditions for a specified period of time.
Elasticity
Represents an infrastructure ability to adapt to the requirements based on real-time analysis methodologies of the entire system and to increase the system performance when the demands are high and to decrease the performances when demands are low.
Interoperability
A property of a product or system, whose interfaces are completely understood, to work with other products or systems, present or future, without any restricted access or implementation.
Portability
The ability to access services using any devices, anywhere, continuously with mobility support and dynamic adaptation to resource variations.
Fault Tolerance
The property that enables a system to continue operating properly in the event of failure of some of its components.
Resilience
The ability to provide and maintain an acceptable level of service in case of error in order to offer usual services.
Cloud Actors
Consumer
"A person or organization that maintains a business relationship with, and uses service from, Cloud Providers.
Auditor
A party that can conduct independent assessment of cloud services, information system operations, performance and security of the cloud implementation.
Broker
An entity that manages the use, performance and delivery of cloud services, and negotiates relationships between Cloud Providers and Cloud Consumers.
Carrier
An intermediary that provides connectivity and transport of cloud services from Cloud Providers to Cloud Consumers.
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Cloud Deployments Models
Private
A type of cloud computing that delivers similar advantages to public cloud, including scalability and self-service, but through a proprietary architecture.
Public
Services offered over the public Internet and available to anyone who wants to purchase the service.
Hybrid
A networking environment that includes multiple integrated internal and/or external providers. It combines aspects of both public and private clouds.
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Cloud Services Models
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Iaas
Delivers computer infrastructure, typically a platform virtualization environment, as a service. Rather than purchasing servers, software, data center space or network equipment, clients instead buy those resources as a fully outsourced service.