2009 December 02 « The HealthITBlog

A simple data model for an Electronic Medical Record

I present a simple data model for an EMR created using ARGO UML

Key components of this model:

Patient – the person treated by the physician
Physician – doctor
Medication – drug prescribed for a diagnosis
Encounter – a patient visit
Diagnostics – what the physician deduces is wrong with the patient.

Relationships:

1:1 (one to one) – where one component can only be related to one instance of another component.
1:m (one to many) – where one component is related to several instances of another component
m:m (many to many) – where several components are related to several instances of another component

Below is the model with comments alongside each object and each relationship

December 2, 2009 Posted by jgershater | Health Information Technology | data model, EMR | Leave a Comment

Health Internet vs NHIN: in pictures

I read with great interest, David Kibbe’s posting on the HealthCare blog, NHIN vs The Health Internet; that same week I also read Robert Rowley’s take on the NHIN vs The Health Internet. So I thought I would sum up the two perspectives with two pictures. (Forgive the delay, I took a break over Thanksgiving)

NHIN – National Health Information Network – “is a collection of standards, protocols, legal agreements, specifications, and services that enables the secure exchange of health information over the internet.” Basically a Federal push for standards, specs and protocols to allow electronic data to be exchanged.

HealthInternet – an open-market standards-based approach to enable the exchange and sharing of electronic health data, using existing Internet standard protocols and web technologies.

So here then a graphical view of the two approaches