From David Rees PhD dissertation "Developing a Theory of Implementation for Better Chronic Health Management" Health Services Research Centre, Victoria University of Wellington, New Zealand

An exploration of interactions among 'fuzzy' qualitative concepts that interact to produce either tolerance or violent conflict. ​Z509 p43-49 System Zoo 3 by Hartmut Bossel.

Based on diagrams in the NAP 2015 Report Improving diagnosis in health care process Compare with IM-885 Clinical judgment to provide context and and Decision Ladder IM-689 to provide decision process task detail

This is a simpler version of Insight 649 showing the flow of Older People among the Community Hospital and Aged Care Residences

Childhood obesity map for state prevention. Extended at  CCP 5 risk factors IM See also Christine's private version

This model shows the Pharmaceutical New Drug Pipeline based on drug release, approval and patent expiry. This pipeline is then linked to patients switching from older drugs to newer drugs based on proven indications and marketing (indication creep). Based on work by Mark Heffernan on the Australian Pharmaceutical Benefits Scheme for drug subsidy.Conference paper and Larger ithink model

Upgrade of Kermack–McKendrick Epidemic SIR Infectious Disease Model (circa 2015) - Metrics by Guy Lakeman

This is a simple SIR infectious diseases 3 stock model with Susceptibles, Infectives and Recovereds stocks. In the initial description the R signified Removed and could include Deaths, Recovered with immunity to infection (Resistant) or those who had fled the epidemic. Note the need to initiate the epidemic by adding a pulse of a single infected person at time 0.

Addition of a slider for susceptibles is equivalent to accumulated total cases

SARS, MERS AND COVID are similar virus types only differing in their sub genus

The COVID outbreak has reached 150,000 infected people

This simulation allows an attempt at predicting how long the virus will persist and its longevity dependence on its high speed massive infection numbers that have reached pandemic proportions

SARS reached 8,000 infected total and ran for 9 months before stopping

MERS 2012 is still killing 8 years later with patients dying even after using interferon to try and cure them

Click +View Story on Bottom Left to unfold his wide view of Emergency care patient flows IM-6072 used as context to add confounders and potential indirect effects. See also IM-1010 for hospital fixes that fail, wiki for general Systems Archetypes and wiki for Leverage Points (There is also a health leverage points WIP wiki page)

A stock flow structure used to show the unit of analysis, scope of study and context of the ED Four hour rule project, cloned from im-399 monthly flows

WIP Conceptual map of initial scope of the effects of the ED 4 hour rule based on June WA Teleconference. See also the addition of unintended consequences at IM-7775 and the potential wider context map in IM-6167. For a simulation see IM-8237

Regulation of resource allocation to service in response to service quality. A non-price-mediated resource allocation system. From Sterman JD Business Dynamics p172 Fig 5-27

WIP Patient Flow improvement strategies for a City Hospital with 3 years historical data and two year planning horizon. Built after a Generic Teaching Hospital Model IM-10346 A simplified stock flow map is at IM-399

This is a stock flow map representation From Evans RG and Stoddardt GL  1990 paper Soc Sci Med 31(12)1347-63 , also published in a book by Evans, Barer and Marmor, Why are some people healthy and others not?: The determinants of population health See IM-425 for a simulation.

WIP for Effects of Senior Staff Weekend Rostering on ED Flows. Two areas Map simplified later to no specific areas Simulation in IM-11079

A general stock flow map of flows between hospital and the community, with more detail for hospital inpatient flows. An expanded version of IM-622

Addition of glucagon hormone action to control glucose homeostasis extended from IM-586

Hannon and Ruth Modeling Dynamic Biological Systems p67

A simple SD model ​From alonge2017 health policy and planning article

Critical Systems Heuristics Boundary critique from Ulrich See also Critical Systems Thinking Insight

From PLOS One Article April 2012 Worni, M et al System Dynamics to Model the Unintended Consequences of Denying Payment for Venous Thromboembolism after Total Knee Arthroplasty

From Tarek KA Hamid's Book Thinking in Circles About Obesity Springer 2009

Jenny W. Rudolph Nelson P.Repenning Disaster Dynamics: Understanding the Role of Quantity in Organizational Collapse Administrative Science Quarterly,47(2002):1-30 paper