domain driven design and rim. introduction 1 rimresistance is futile, you will be assimilated!
TRANSCRIPT
Domain Driven Design and RIM
Introduction
2
RIMResistance is Futile, you Will be Assimilated!
Agenda
RIMBAA ExperiencesDomain Driven Design AppliedFIHR with DDD
3
Agenda
RIMBAA ExperiencesDomain Driven Design AppliedFIHR with DDD
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Experiences from the field
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• RIMBAA Challenges– Object Oriented skills not mainstream– Developers’ dependencies on
frameworks – ORM not needed – What !!!– RIM knowledge required– Data Types – I agree!– HL7 2.x perception
Current RIMBAA Project
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• Fresenius Health Care NA– 2000 Kidney Dialysis Clinics – 200k Active Patients– RIMBAA HIE Platform– Central Patient Administration– Coexist with legacy applications– Project needs to evolve in Agile
environment
Agenda
RIMBAA ExperiencesDomain Driven Design AppliedFIHR with DDD
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Architecture
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• Domain Driven Design & RIM– Vital Patterns
• Bounded Context (Universal Domains)• Aggregate Root (R-MIM)• Specification (Constraints, Business Rules)• Event Sourcing (State Storage, Ultimate
Audit)• Command Query Responsibility Segregation
(RIM Isolation)
Bounded Context
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User Interface
User Interface
View ModelView ModelRIMRIM
RIM EventsRIM Events
Segregation
Commands
Query
EventsEvents AnyAny
Patient Administration
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Patient TrackingPatient
Tracking
Current State
Current StateR-MIMR-MIM
AmbulatoryEncounterEvent
AmbulatoryEncounterEvent
Segregation
Commands
Query
Changed DataChanged Data 2NF2NF
Agenda
RIMBAA ExperiencesDomain Driven Design AppliedFIHR with DDD
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Challenges
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• Restful RIM Resources– CRUD theme– What’s a Resource– Future Proof– Local Extensions– Other Protocols– Deployment schemes
Patient Administration
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RESTREST
ResourceResourceR-MIMR-MIM
AmbulatoryEncounterEvent
AmbulatoryEncounterEvent
Segregation
Post
Get
Changed DataChanged Data CCDCCD
Patient Administration
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RESTREST
ResourceResourceR-MIMR-MIM
AmbulatoryEncounterEvent
AmbulatoryEncounterEvent
Post
Get
Changed DataChanged Data
ResourceResource
MessageMessage
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Patient De-Identify Deployment Example
Command
BIDMC BWH CHB MGH MIT
Segregation
Resource or Views
Firewall Firewall Firewall Firewall Firewall
R-MIM