Archive for the ‘Systems’ Category

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Evolution of Enterprise Architecture Framework...
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Architecture as system

Enterprise-architecture, service-architecture and the Viable System Model

Tom Graves : Tetradian Consulting
January 2007

– enterprise architects, service architects, operations
strategists, process analysts, IT-systems analysts
• Objective
– increase business take-up of enterprise architecture
– demonstrate tools to review service-architecture
• Agenda
– extend enterprise-architecture beyond IT-systems
– extend service-architecture across all service types
– use ‘systems-theory’ tools to improve services
– business benefits of extended architecture


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1Badillo, I., 2Tejeida, R., 3Morales, O.
1,2,3 Instituto Politécnico Nacional, México.

The Viable System Model (VSM) is recursive and helps explaining the general production management model of the ERP system. The recursion level explains the development
starting from warehouse management to Material Requirement Planning (MRP), to Manufactory Requirement Planning (MRPII), to Enterprise Resources Planning (ERP), and
to Supply Chain Management (SCM).
In each recursion level, the emergent concepts helps explaining the discovery of the two categories of demand: independent demand and dependent demand, the feedback concept
helps explaining the closed cycles in ERP, the local, future and total environment concept helps explaining the interactions between the market and the Production System and the
Law of requisite variety helps to manage complexity.

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From News
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Breadcrumbs for 2006-10-16

   Posted by: dsoul Tags: EMR


Security tips for EMR

   Posted by: dhcsoul Tags: EMR

In Technology For Doctors Issie Rabinovitch passes on common sense suggestions to improve security on EMR systems:


EMR: Exam room configuration

   Posted by: dhcsoul Tags: EMR

In CanadianEMR there is a whole section devoted to disussion Exam Room configurations and set up of the equipment for EMR systems in primary care settings.  Everthing from screen orientation (whether to allow direct view by the patient) to hardware brackets for mounting the computer is open game in this section of the site….many worthwhile hints from pioneer implementors can be found at:

Available from the Medical Records Institute (pdf) is their latest annual survey of  EHR Trends and Usage which reveals insights into the:

Priorities for strategic decisions in IT
EHR applications and functions being implemented or planned
EHR configurations for different environments
Data capture methods being employed
Major barriers to implementing EHR systems
Mobile/wireless technologies used, concerns related to implementation, and impact on healthcare delivery
Perceived effectiveness of IT on patient safety

You can fiind it at:

Alan Brookstone has posted an interesting piece in CanadianEMR where he discusses the exipration of the Alberta Physician Office System Program (POSP). As he indicates:

“The POSP funding program has been viewed as both an experiment and a model for provinces across Canada.”

Here in BC the nascent Physician Information Technology (PITO) program is still largely underwraps … but Physicians are being told to wait… to not buy either hardware or software until the program is fully underway or they may not be eligible for funding if their choice turns out not to be on the PITO qualified EMR vendor list when it finally comes out.

In CanadianEMR Dr. Brookstone reports that a change in the presentation of lab results has eliminated a huge benefit that he had as a clinician in easily identifing trends through graphing the results for presentation to patients to demonstrate progress or lack thereof.

The discussion thread was quite active and included opinions that went beyond the trouble of changing of standard presentation methods to the very usefulness of graphing medical results.

I don’t believe the discussion does more than scratch the surface, and will be writing more about the visual display of medical information in future posts, but this appears to be one of the few discussions of the state of the art in EMR: