Alexander Henket HL7 Expert May 10, 2015 ART-DECOR on FHIR Alexander Henket HL7 Expert May 10, 2015
Introduction Alexander Henket HL7 Expert / ART-DECOR Expert Team Member @ Nictiz Active Member @ HL7 NL Facilitator PA @ HL7 IHE Lab Member @ IHE NL Skype: ahenket http://www.linkedin.com/in/alexanderhenket ART-DECOR on FHIR
Agenda What is ART-DECOR General Tool Architecture Fitting FHIR Where we’re at Lessons learned ART-DECOR on FHIR
ART-DECOR – a short introduction Slides courtesy of Heitmann Consulting and Services
ART-DECOR ART-DECOR is a tool and a methodology Lev 1 ART-DECOR on FHIR
Co-operation with ART-DECOR Integral consistent tooling: Concept, model, conversion, cooperation, documentation, publication User interface, rules, test framework, REST+SOAP services, terminology browser, demo application DECOR ART ART-DECOR on FHIR
ART Advanced Requirement Tool XML backend and front-end Database Make DECOR “things”, change, manage ART-DECOR on FHIR
Overview DECOR Concept Group / Item Data type Concept list Properties Actor Transaction Cardinality Conformance Test suite Scenario Templates Elements Attributes Constraints Validation Rules OID registry Summary of IDs Identifiers Value Sets Terminology Associations Coded Concepts Codes Change Management Status Assignment Issues Overview DECOR ART-DECOR on FHIR
General Tool Architecture Orbeon XForms + Apache Tomcat HTTP GET/POST Proprietary API XML database XQuery/XInclude/XSL HTTP GET E.g. for Value Sets in HTML/XML ART-DECOR is the sum of >15 functional packages in eXist-db XForms allow for creating UI relatively easy. Lots of generated JavaScript Communication with the backend is mostly open, but proprietary ART-DECOR on FHIR
Fitting FHIR Terminology is the initial focus Build solid, standards based FHIR API access for both internal and external usage Purposes: build profiles, create/maintain host value sets, support validation testing ART-DECOR – a short introduction
Fitting FHIR Boundary eXist-db == XQuery reference implementation JSON/RDF Made extensive use of pipeline feature (controller.xql) Extremely simple index config allows for powerful searches Database collections: audit, snapshot, history, resources ART-DECOR – a short introduction
Fitting FHIR Current index definition Storage strategy: Lucene index on @value and f:text Range index on @id, @type, @value, @version Storage strategy: <entry type="ValueSet" id="…" version="1" created="date-time" lastupdated="date-time"> <meta/> <body> <ValueSet xmlns="http://hl7.org/fhir">… </body> </entry> ART-DECOR – a short introduction
Fitting FHIR Demo of snippets ART-DECOR – a short introduction
Where are we at? FHIR API (REST) is nearing initial functional completion (DSTU2) missing: $validate-code missing: connecting HAPI-FHIR to be improved: performance Next: connecting ART ART-DECOR – a short introduction
Lessons learned eXist-db / XQuery appears to be sufficient for most of FHIR, but calling HAPI-FHIR for certain tasks is preferable (e.g. JSON<>XML) Creating a server is hard work, but even harder from scratch Cannot really do FHIR without generating from a meta model, e.g. to tell you the search params and elements marked as summary Lots of secondary educational moments while working on expansions ART-DECOR – a short introduction