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Structured terminologies have some common ‘resources’ such as Code Systems, Domains, Value Sets and access to these resources is enabled usually through a service interface.  CTS2 strives to provide a consistent representation and flexible service interfaces to structured terminologies.  This enables us to accurately represent and manage a wide variant variety of vocabularies and other lexically-based resources.

The CTS2 Platform Independent Model (PIM) provides a standard service information and computational model. The information model specifies the structural definition, attributes and associations of these common terminology ‘resources’ and computations model specifies the service descriptions and interfaces needed to access and maintain structured terminologies.

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Even though the detailed description of CTS2 PIM specifications can be found on the OMG site http://www.omg.org/spec/CTS2/1.0/Beta1/, the following tables provide a concise look at its structure. CTS2 organizes resources in terms of coding schemes, entities and value sets and provides various function areas to access these resources using CTS2 module and services.

Where can I learn more about CTS2? Are there some existing implementations or examples available?

http://informatics.mayo.edu/cts2/index.php/Main_Page

More information can be found on the VKC pages about CTS 2.

The CTS2 specification allows (and encourages) modular implementation of its model components and service interfaces. A CTS2 service instance (a particular implementation of CTS2 specifications) may choose to implement only a subset of model and services that it needs.

{_}+\[Should we give a quick list of CTS2 implementations available here. This may directly link to section ‘CTS2 in action’\]+{_}

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