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Oasis Tosca

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Title: Oasis Tosca  
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Subject: Web service specifications, Directory Services Markup Language, Component content management system, Key Management Interoperability Protocol, Content Assembly Mechanism
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Oasis Tosca

Topology and Orchestration Specification for Cloud Applications (TOSCA), is an OASIS standard language to describe a topology of cloud based web services, their components, relationships, and the processes that manage them. The TOSCA standard includes specifications to describe processes that create or modify web services.


On 16 January 2014, OASIS TOSCA Technical Committee approved TOSCA 1.0 as a standard.


Related specifications

Commercialization of cloud computing offerings has required manageability of tenant applications, particularly on a large scale. As such, vendors who offer their services to a wide market have written related standards that predate, or have been developed concurrently, with the OASIS TOSCA standard.

Amazon AWS CloudFormation Template

The Amazon AWS CloudFormation Template is a JSON data standard to allow cloud application administrators to define a collection of related AWS resources.

OpenStack Heat

The OpenStack Foundation has also defined a similar standard for specifying resources and the orchestrations for managing infrastructure, and application lifecycles. The heat-translator project was one of the first to adopt TOSCA for standardized templating.


Cloudify is an open source TOSCA-based orchestration framework based on YAML.


Alien4Cloud (meaning Application LIfecycle ENabler for Cloud) is an open source TOSCA based designer and Cloud Application Lifecycle Management Platform. It is natively integrated with Cloudify for runtime orchestration though other orchestrators can be plugged to it.

Related research projects


SeaClouds is an EU FP7 funded project whose mission is to provide seamless adaptive multi-cloud management of service-based applications. It natively supports TOSCA, and it is participating in the standardization of such standard.

See also

External links

  • Topology and Orchestration Specification for Cloud Applications Version 1.0
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