An HL7 standard

Arden Syntax 3.0 is here
Modern computable clinical knowledge for the data-centric age.

The Arden Syntax Standard for clinical decision support

See how Arden Syntax can help improve your clinical decision support

Modular Structure

It's truly plug and play
Arden Syntax scripts follow a strict modular format that already includes metadata like its name, purpose and priority. That's why they're called Medical Logic Modules (MLMs). Any MLM will plug into any compliant Arden Syntax Server and be ready to go - that's the beauty of standardization.

Built-in FHIR® and database access

Your data for your decisions
Retrieving HL7® FHIR® resources is made easy through built-in support for querying and writing these resources from directly within Arden Syntax. Data access is further expandable by means of plug-ins, which permit for access to plain databases, openEHR systems and many more.

Fuzzy Logic

Do away with dichotomy
Hard thresholds are a thing of the past. Arden Syntax's support for fuzzy logic enables soft thresholds and complex decision trees to make sure that not a single vital detail is missed.

Events and Scheduling

Decision support that is right on time
Check up on a patient from time to time or react right when new information comes in. Medical Logic Modules can define when they want to be run or what events they want to react to. They can be periodically verified guidelines or alerts that trigger on problematic virological results. Your workflow, your rules.

The organisations and people that make it work

The history & people behind Arden Syntax
Arden Syntax stems from an amalgamation of various clinical decision support rule definition systems in the US in the 1990s. Now an HL7® FHIR® standard, it continues to be updated by the Arden Syntax working group dedicated to this purpose. Its newest version, Arden Syntax 3.0, introduced native support for querying FHIR® objects among many other things.