A launchpad to tie together some ideas about Reality. See  wikipedia
Methods Science Philosophy Realist
A launchpad to tie together some ideas about Reality. See wikipedia
Reality
Geoff McDonnell
This model illustrates predator prey interactions using real-life data of wolf and moose populations on the Isle Royale. Experiment with adjusting the initial number of moose and wolves on the island.
Populations Ecology Environment
This model illustrates predator prey interactions using real-life data of wolf and moose populations on the Isle Royale.

Experiment with adjusting the initial number of moose and wolves on the island.
Parker Realistic Isle Royale: Predator Prey Interactions
Parker Kain
This model illustrates predator prey interactions using real-life data of wolf and moose populations on the Isle Royale. Experiment with adjusting the initial number of moose and wolves on the island.
Populations Ecology Environment
This model illustrates predator prey interactions using real-life data of wolf and moose populations on the Isle Royale.

Experiment with adjusting the initial number of moose and wolves on the island.
A More Realistic Model of Isle Royale: Predator Prey Interactions
Alyssa Farmer
Attempts to model in the social dynamics of returning players
Infection Epidemics Social Media
Attempts to model in the social dynamics of returning players
Streamer Social Media Virality 7 w Player loop
Alexander St. John
3 yesterday
WIP to explain iterative modelling of linkages over space and time see also  causal pathways IM
Association Health Care Realist Mechanism Correlation CMO Methods Prevention Causation
WIP to explain iterative modelling of linkages over space and time see also causal pathways IM
Linkages among objects
Geoff McDonnell
Overview of Evaluation Approaches from Pawson and Tilley's Book  comparing Realist, Constructivist, Experimental and Pragmatic Evaluation Approaches. Combined with Van de Ven's Alternative Philosophies of Science in his Engaged Scholarship  book . See also Burrell and Morgan's research paradigms v
Philosophy Social Research Methods Realist Evaluation Health Care Science
Overview of Evaluation Approaches from Pawson and Tilley's Book comparing Realist, Constructivist, Experimental and Pragmatic Evaluation Approaches. Combined with Van de Ven's Alternative Philosophies of Science in his Engaged Scholarship book. See also Burrell and Morgan's research paradigms video
Realistic and Other Evaluation Methods
Geoff McDonnell
8 months ago
Summary of Ray Pawson's Book The Science of Evaluation: A Realist Manifesto See also  lse review  2013
Realist Methods Evaluation
Summary of Ray Pawson's Book The Science of Evaluation: A Realist Manifesto See also lse review 2013
The Science of Evaluation
Geoff McDonnell
4 months ago
Attempts to model in the social dynamics of  Pavilion host aquisition
Infection Epidemics Social Media
Attempts to model in the social dynamics of  Pavilion host aquisition
Pavilion Model
Alexander St. John
12 hours ago
This model illustrates predator prey interactions using real-life data of wolf and moose populations on the Isle Royale. We incorporate logistic growth into the moose dynamics, and we replace the death flow of the moose with a kill rate modeled from the kill rate data found on the Isle Royale websi
Populations Midterm Ecology Environment
This model illustrates predator prey interactions using real-life data of wolf and moose populations on the Isle Royale.

We incorporate logistic growth into the moose dynamics, and we replace the death flow of the moose with a kill rate modeled from the kill rate data found on the Isle Royale website.

I start with these parameters:
Wolf Death Rate = 0.15
Wolf Birth Rate = 0.0187963
Moose Birth Rate = 0.4
Carrying Capacity = 2000
Initial Moose: 563
Initial Wolves: 20

I used RK-4 with step-size 0.1, from 1959 for 60 years.

The moose birth flow is logistic, MBR*M*(1-M/K)
Moose death flow is Kill Rate (in Moose/Year)
Wolf birth flow is WBR*Kill Rate (in Wolves/Year)
Wolf death flow is WDR*W

Final Midterm Student version of A More Realistic Model of Isle Royale: Predator Prey Interactions
Andrew E Long
79
The simulation starts with 10 persons sick on 1. March 2020. It will pause every 14 days to adjust parameters.
The simulation starts with 10 persons sick on 1. March 2020. It will pause every 14 days to adjust parameters.
Corona in Austria
gw
17
Based on a book  chapter by Rosemarie Sadsad based on her PhD Thesis . See also other Insights tagged Multiscale and Realist (  IM-3546  and IM-3834 are embedded here)
Methods Realist Health Care Multiscale
Based on a book chapter by Rosemarie Sadsad based on her PhD Thesis. See also other Insights tagged Multiscale and Realist ( IM-3546 and IM-3834 are embedded here)
Multiscale modeling process
Geoff McDonnell
5 months ago
Insight diagram
More realistic moose model
Lawrence Rose
10
This simulation allows you to compare different approaches to influence flow, the Flow Times and the throughput of a work process. By adjusting the sliders below you can  observe the work process without any work in process limitations ( WIP Limits ),  with process step specific WIP Limits* (
Agile Drum-Buffer-Rope DBR TOC Kanban Flow Tameflow Theory Of Constraints
This simulation allows you to compare different approaches to influence flow, the Flow Times and the throughput of a work process.

By adjusting the sliders below you can 
  • observe the work process without any work in process limitations (WIP Limits), 
  • with process step specific WIP Limits* (work state WIP limits), 
  • or you may want to see the impact of the Tameflow approach with Kanban Token and Replenishment Token 
  • or see the impact of the Drum-Buffer-Rope** method. 
* Well know in (agile) Kanban
** Known in the physical world of factory production

The "Tameflow approach" using Kanban Token and Replenishment Token as well as the Drum-Buffer-Rope method take oth the Constraint (the weakest link of the work process) into consideration when pulling in new work items into the delivery "system". 

You can also simulate the effects of PUSH instead of PULL. 

Feel free to play around and recognize the different effects of work scheduling methods. 

If you have questions or feedback get in touch via twitter @swilluda

The work flow itself
Look at the simulation as if you would look on a kanban board. 

The simulation mimics a "typical" software delivery process. 

From left to right you find the following ten process steps. 
  1. Input Queue (Backlog)
  2. Selected for work (waiting for analysis or work break down)
  3. Analyse, break down and understand
  4. Waiting for development
  5. In development
  6. Waiting for review
  7. In review
  8. Waiting for deployment
  9. In deployment
  10. Done
[Archive] Kanban Board Simulation - WIP Limit, Tameflow Kanban Token and Drum-Buffer-Rope
Stefan Willuda
17
Addition of multilevel system dynamics to the context mechanism outcome realist evaluation framework of Pawson and Tilley. See also multilevel holons  IM-3546
Methods Realist Hybrid Multiscale

Addition of multilevel system dynamics to the context mechanism outcome realist evaluation framework of Pawson and Tilley. See also multilevel holons IM-3546



Realist Evaluation Dynamics
Geoff McDonnell
3 4 months ago
WIP  Book  Summary
Explanation Education Learning Realist Understanding Methods Knowledge
WIP Book Summary
The Educated Mind
Geoff McDonnell
6 months ago
Adapted from Pawson and Tilley (1997) and Ratze et al. (2007) by Rosie Sadsad for a forthcoming book chapter . Contextual factors, mechanisms and outcomes are conceptualised as holons. Their state may change over time (t) and across levels of organisation (l). Holons are components and form part o
Methods Holon Stommel Realist Hybrid Multiscale
Adapted from Pawson and Tilley (1997) and Ratze et al. (2007) by Rosie Sadsad for a forthcoming book chapter. Contextual factors, mechanisms and outcomes are conceptualised as holons. Their state may change over time (t) and across levels of organisation (l). Holons are components and form part of a compound holon. Holons are connected by weak or strong links.
​See also Realist Evaluation IM-1713 and Holon wikipedia and Multiscale modelling process IM-10070
Multilevel holons context mechanisms and outcomes
Geoff McDonnell
4 months ago
Working model of Yellowstone dynamics created by students in Ecology 2015 at McDaniel College.​ This class collaboration is the first attempt by these students to develop a functioning model that includes competition, disease, predation, invasives and impacts of environmental variables on the ma
Working model of Yellowstone dynamics created by students in Ecology 2015 at McDaniel College.​ This class collaboration is the first attempt by these students to develop a functioning model that includes competition, disease, predation, invasives and impacts of environmental variables on the major species over the last 30 years.
Although we are attempting to create a realistic model, we are not researchers and depend on varied data sources for coefficients.

Eco15 Yellowstone Model
Esther
14
WIP Understanding pathways to observed effects complex causation Pathways Moving to Opportunity NYC example from Nate Osgood's big data lecture youtube video  Feb 2017 Sydney.
CMO Health Care Prevention Intervention Association Realist Methods Correlation Causation Mechanism Epidemiology
WIP Understanding pathways to observed effects complex causation Pathways Moving to Opportunity NYC example from Nate Osgood's big data lecture youtube video Feb 2017 Sydney.
Potential and actual causal mechanisms
Geoff McDonnell
This model illustrates predator prey interactions using real-life data of wolf and moose populations on the Isle Royale. We incorporate logistic growth into the moose dynamics, and we replace the death flow of the moose with a kill rate modeled from the kill rate data found on the Isle Royale websi
Midterm Environment Ecology Populations
This model illustrates predator prey interactions using real-life data of wolf and moose populations on the Isle Royale.

We incorporate logistic growth into the moose dynamics, and we replace the death flow of the moose with a kill rate modeled from the kill rate data found on the Isle Royale website.

A decent match to the data is made with
Wolf Death Rate = 0.15
Wolf Birth Rate Factor = 0.0203
Moose Death Rate Factor = 1.08
Moose Birth Rate = 0.4
Carrying Capacity = 2000
Initial Moose: 563
Initial Wolves: 20

I used RK-4 with step-size 0.1, from 1959 for 60 years.

The moose birth flow is MBR*M*(1-M/K)
Moose death flow is MDRF*Sqrt(M*W)
Wolf birth flow is WBRF*Sqrt(M*W)
Wolf death flow is WDR*W

A More Realistic Model of Isle Royale: Predator Prey Interactions
Andrew E Long
83
Simulation d'un MRU d'un corps qui avance avec une régulation de vitesse réaliste.
Simulation d'un MRU d'un corps qui avance avec une régulation de vitesse réaliste.
serie 08a ex4 Une regulation de vitesse plus realiste V1
Bernard2018
Simulate an impact of an asteroid of any Diameter at any given Speed!
Physics Science Energy Education Kinematics asteroid meteorite Realist Heating Friction Environment
Simulate an impact of an asteroid of any Diameter at any given Speed!
Asteroid impact simulator
Alex Neroni
4 months ago
Insight diagram
Infection Epidemics Social Media
Streamer Social Media Virality 6
Alexander St. John
7 5 days ago
Marketing cost model
Infection Epidemics Social Media
Marketing cost model
Streamer Social Media Virality 7
Alexander St. John
2 months ago
A combination of qualitative and quantitative methods for implementing a systems approach, including virtual intervention experiments using computer simulation models. See also  Complex Decision Technologies IM Interventions and leverage points added in  IM-1400  (complex!) 
Experiment Virtual Built Environment Health Care Realist Methods System Inquiry
A combination of qualitative and quantitative methods for implementing a systems approach, including virtual intervention experiments using computer simulation models. See also Complex Decision Technologies IM
Interventions and leverage points added in IM-1400 (complex!) 
Systems Methods
Geoff McDonnell
3