Snow Owl Terminology Server…

scales from a small kernel embedded in single-user products to n-tier clusters supporting hundreds of concurrent users.

Clients can easily access and query SNOMED CT, LOINC®, ATC, ICD-10, and dozens of additional terminologies via REST or Java APIs. Collaborative distributed authoring is also supported, including creating and maintaining your own local code systems, mapping between terminologies, and creating terminology subsets.

If you’d like to see how our terminology server is used as the foundation for terminology authoring tools, please see our collaborative authoring page.

Tried the REST? Now try the best.

Our terminology server is ready for today and prepared to power the future.

We love authors!

  • Distributed revision control system supports large teams of authors and reviewers working on independent branches.
  • Extensive support for expression constraints and semantic queries, including Extended SNOMED CT Compositional Grammar.

We love developers!

  • Developer-friendly REST API uses a relatively small set of operations, provides descriptive error messages, and makes use of HATEOAS for resource linking and navigable associations.
  • Traditional, white-label (embed within your product), and source code licenses available.

We love standards!

  • Standard distribution formats (e.g. SNOMED RF2, ICD-10 ClaML, LOINC csv) eliminate reliance on proprietary vendor formats.
  • Full support for SNOMED CT logical definitions (OWL 2 EL) with extended support for extensions using advanced description logic features (OWL 2 DL) including datatype properties, universal restriction, disjunction, and more.

Those Are Just A Few Main Features, There Are Plenty More

  • Complete SNOMED CT RF2 support

  • RF2 full, snapshot & delta import/export

  • SNOMED CT RF1 & RF2 publication

  • Terminology authoring

  • Deployable as embedded kernel

  • Deployable as n-tier server

  • Dynamic concept model

  • Custom subset exports

  • REST and Java APIs

  • Task-based authoring

  • Scripting support

  • Intensional refset creation

  • Programmatic refset generation

  • Custom subset export formats

  • Collaborative authoring

  • Distributed authoring

  • Version creation

  • Patches on versions

  • Version comparison

  • Independent work branches

  • Workflow service integration

  • Task management integration

  • Work-in-process isolation

  • Published and unpublished content

  • Reference set / subset creation

  • Terminology maps

  • Unlimited terminologies

  • Formal MRCM integration

  • Semantic query evaluation

  • ESCG expression evaluation

  • Intelligent lexical searches

  • Reasoner job execution framework

  • Fast OWL 2 EL with datatype properties

  • Full OWL 2 DL with ∀, ∨, ¬

  • Semantic difference computation

  • Plug-and-play any Protege reasoner

  • Support for non-OWL API reasoners

  • Incremental reasoning

  • Normal form transformation

  • Reference set comparison

  • Post-coordination

  • Automatic pre-coordination

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