Ruby on the openEHR
Shinji KOBAYASHI
Ruby implementation of openEHR
DoneRM, AM implementation
ADL 1.4 parser
Archetype to Rails app
DoingOPT parser
Rails Engine for openEHR
Sample app for our next generation EHR
To doTerminology (ontology) flattener
ADL 2.0 parserRR grammar
Dolphin project
Union of regional health care systemKyoto, Miyazaki, Kumamoto,
Tokyo
Web based system for hospitals and patients.
Standardised by MMLXML standard for sharing clinical
information
22 XML formalism
12 years historyMainly coded by Perl and M(Mumps).
DB Engine is Cache(TM).
rDolphin Project
Revised DolphinModernise architecture. MVC Framework
Object oriented programming, Cache to RDBMS(or NoSQL)
Research DolphinFor implementation research of openEHR
For clinical research
Ruby DolphinRuby and Ruby on Rails implementation
Implementation overview
Ruby on Rails(Ruby 2.2.3, Rails 4.2)
Re-construction of MML by archetype concept modelsHand generated
forms and classes
PostgreSQL database engine
Open Source Software
Logical model of Ruby classes
Person
Party
Organization
EHR
Composition
ContentItem
ContentItem
ContentItem
ContentItem
Database model
Performance benchmark(1)
MySQL 10 1001000
Vital sign report: 108.8560.757657.42
Vital Sign report: 10059.241580.315829.14
Vital Sign 1000580.295794.3758019.49
PostgreSQL 10 1001000
Vital sign 109.08560.62582.21
Vital Sign 10067.36585.966010.87
Vital Sign 1000678.785827.7458819.23
sqlite3 10 1001000
Vital sign 1020.229162.741610.13
Core i7 4770, 3.4GHz, RAM 32GB, SSD 250GB, FreeBSD(64bit), ZFS
Ruby 2.1.1
Performance bench mark(2)
Document sizeConcurrent access: 1Concurrent access: 10Concurrent
access: 100
HTML8,500bytes29.9930.3530.15
XML812bytes104.62104.48106.22
JSON172bytes108.83109.08107.01
CSV16bytes140.74146.85143.93
HTTP server: unicorn 4.8.3, CPU Core i7 4770, 3.4GHz, RAM 32GB,
SSD 255GBMeasured by Apache bench to localhost. Unit:
request/second.Each result was the avarage of 1,000 trials
Further works
Rails EngineAuto-generation from OPT(Operational Template) to
Web forms
DB schema
Ruby codes for models, controllers, views on Rails
Javascripts and CSSs
DB EngineRDBMS: PostgreSQL, MySQL
NoSQL: Google Big Table, Hadoop
