Peter Hovmand's Work


We found 144 items
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#1

Greenspace and Physical Activity

This is a small model used to introduce system dynamics and the concept of systems in the context of ... Read more
This is a small model used to introduce system dynamics and the concept of systems in the context of public health and community health improving planning
sim5,068 runs, 4 downloads
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Environment Education Health
3335.708
#2

Campus sexual assault

A very simple, one stock, simulation of campus sexist attitudes toward rape and initimate partner vi ... Read more
A very simple, one stock, simulation of campus sexist attitudes toward rape and initimate partner violence. The model was originally developed in 1998 and later translated into Stella. The model has a number of modeling errors, but at the time, proved useful for gaining insight into the dynamics of the system and developing an innovative prevention program.
sim1,575 runs, 47 downloads
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campus sexual assault community norms
1663.0067
#3

ENGR 399 Project 3

sim6,093 runs
1568.98
#4

Developmental transitions and cognitive vulnerability

This is a "proof of concept" model illustrating how system dynamics can be used to develop feedback ... Read more
This is a "proof of concept" model illustrating how system dynamics can be used to develop feedback theories of developmental theories. The model focuses on understanding the dynamics of individual cognitive vulnerability from 0 to 21 years of age through a series of school transitions moderated by family support.
sim1,003 runs, 11 downloads
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Education psychology theory development proof of concept model
1404.5146
#5

Fresh Produce Access Game

sim1,023 runs, 7 downloads
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Health food security nutrition securing program funding
981.9
#6

MNH Strategic Model

Strategic model of country-level policies to reduce maternal and neonatal mortality.
sim949 runs
global health maternal survival neonatal survival
941.05334
#7

Human Ecological Systems (HES)

The purpose of this model is to (1) demonstrate a way to represent human development that includes i ... Read more
The purpose of this model is to (1) demonstrate a way to represent human development that includes individual resources, social networks, and spatial relationships within a single model of a formal feedback theory of development, (2) provide an approach to theory development that begins with a simple model and gradually includes more complex facets of social reality (e.g., social networks, location), and (3) illustrate its application to formally testing and comparing a theory over a wider range of assumptions that can inform the design of data collection and analysis to more accurately reflect the dynamics of human development and outcomes. The approach has a wide range of possible applications in theory development and community intervention design, research, and evaluation. Examples include school-based and community based positive youth development interventions, drug use/addiction and treatment in rural settings, community responses to domestic violence, neighborhood effects and interventions, homelessness, supports for ex-offenders released from prison or jail, and health inequities. Version 1.0 focuses on mainly working out a simple example of interactions between social networks and spatial relationships. The model (right) represents a formal theory of how people will move to be close to their nearest friend. Since friends are determined by a social network where people have different sets of friends, and people are in different locations, movement will depend on an interaction between each individual’s social network, the location of their friends, the distance to their friends, and identifying their nearest friend and comparing one’s present location to the location of one’s nearest friend. The model implements this with a random social network for 100 individuals randomly distributed in 100m by 100m coordinate space.
sim206 runs
human development social theory methodology social networks spatial relationships
667.05
#8
diagram1,975 downloads
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508.3
#9

transfusions

diagram1,926 downloads
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495.56
#10

ENGR 399 Technology failures

sim1,785 runs
448.9
#11
diagram1,493 downloads
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382.98
#12

ENGR 398 FL23 Quiz2 loop type

sim1,480 runs
369.6
#13

SDDL1

model1,410 downloads
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366.6
#14

LP CLD

diagram1,420 downloads
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364
#15

LB CLD

diagram1,394 downloads
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357.24
#16

Specialism

diagram1,389 downloads
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355.94
#17

Generalism

diagram1,379 downloads
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353.34
#18

housing practice

diagram1,367 downloads
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350.22
#19

Human Resiliency

Simple proof-of-concept model of human resiliency.
sim1,392 runs
349.22
#20

School

model1,324 downloads
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344.24
#21

USSY demo cld

diagram1,309 downloads
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335.14
#22

ENGR389FL23-extra credit

sim1,310 runs
325.4
#23

ENGR 398 FL23 Quiz2 dominant loops

sim1,295 runs
321.5
#24

ROOSCLD3

diagram1,211 downloads
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309.66
#25

Org culture v1

diagram1,196 downloads
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305.76
#26

Demo 1

diagram1,123 downloads
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286.78
#27

Housing demo 2

diagram1,117 downloads
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285.22
#28

DW v2

diagram1,102 downloads
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281.32
#29

DW v1

diagram1,102 downloads
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281.32
#30

Chicken and egg demo

diagram1,093 downloads
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278.98
#31

USSY demo CLD 2

diagram1,040 downloads
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265.2
#32

ENGR 398 FL23 Quiz2 Loop Scores

sim1,038 runs
254.68
#33

test1010

diagram978 downloads
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249.08
#34

test cld 3

diagram947 downloads
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241.02
#35

Telescope Time

model910 downloads
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236.6
#36

American Samoa Draft CLD

diagram923 downloads
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234.78
#37

chicken and egg SFD example

model894 downloads
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232.44
#38

USSY demo

model842 downloads
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218.92
#39

USC295cSP22

sim888 runs
Education
215.68
#40

HEI demo

sim871 runs, 3 downloads
Download Model
215.54
#41

LTM pratice - epidemic

sim885 runs
214.9
#42

LTM pratice - no epidemic

sim883 runs
214.38
#43

ENGR 398 AI in undergrad education v0

diagram837 downloads
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212.42
#44

USY295c

model805 downloads
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209.3
#45

LTM pratice - endemic

sim843 runs
203.98
#46

Green Space CLD

diagram794 downloads
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201.24
#47

Fit statistics

The model illustrates how various statistics to measure and assess fit perform relative to source of ... Read more
The model illustrates how various statistics to measure and assess fit perform relative to source of measurement error.
sim129 runs, 154 downloads
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Fit statistics Theil inequality
184.047
#48

SCORE

The Systems Change for Racial Equity strategic model simulates the the impact cross sector innovatio ... Read more
The Systems Change for Racial Equity strategic model simulates the the impact cross sector innovations to eliminate racism as a cause of health disparities.
sim658 runs
163.78
#49

ENGR398Quiz4LoopScores

sim627 runs
147.82
#50

Homelessness

sim608 runs
142.62
#51

AI to detect plagarism

diagram458 downloads
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113.88
#52
diagram416 downloads
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102.96
#53

Structure-behavior relationship

sim142 runs, 1 download
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methodology loop impact loop scores limits to growth
92.84
#54

Developmental-transitions

sim413 runs
91.66
#55

USSY 295c SIR Exercise

sim374 runs
82.04
#56

LTM practice - L4

sim342 runs
73.72
#57

Granovetter's threshold model

sim329 runs
70.34
#58
model269 downloads
Download Model
69.94
#59

LTM practice - L5

sim324 runs
69.04
#60

Student Organization

model261 downloads
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67.86
#61

CHL CLD simulation model for teaching

sim320 runs
66.96
#62

LTM practice - L2

sim290 runs
60.2
#63

LTM practice - L1

sim281 runs
57.86
#64

BETTr

sim330 runs
57.34
#65

LTM practice - L3

sim270 runs
55
#66

Access to Fresh Produce

Access to fresh produce concept model for a neighborhood with three types of interventions that can ... Read more
Access to fresh produce concept model for a neighborhood with three types of interventions that can be varied by their effect size and duration.
sim60 runs
Education Health food systems proof of concept
51.116665
#67

PRC-screening

sim225 runs
43.3
#68

demo042525

model164 downloads
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42.64
#69
Coupled Natural Human (CNH) systems demonstration.
sim183 runs
34.93
#70

Wellbeing Demo

sim149 runs
23.54
#71

BioscienceFaculty

sim130 runs
18.6
#72

LTM pratice

sim125 runs
17.3
#73
Prototype simulation model for emergency medicine training
sim52 runs
emergency medicine training
15.542666
#74

Exercise - accumulation

sim114 runs
14.44
#75

Blood Lead Levels in Cuyahoga County

This is a "proof of concept" system dynamics simulation of children < 6 testing positive for blood l ... Read more
This is a "proof of concept" system dynamics simulation of children < 6 testing positive for blood level levels > 5 mg/dL in Cuyahoga County. The model was developed in collaboration with UNDIVIDED CLEVELAND.
sim61 runs
11.16
#76

CHL Regional Food System Demo

Demonstration of a running simulation and interface for the CHL Food System study.
sim85 runs
11.05
#77

coflow demo

sim74 runs, 1 download
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9.1
#78

Org Culture

sim82 runs
6.12
#79

NEF 2

sim82 runs
6.12
#80

demo2

model15 downloads
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3.9
#81

Participation in Social Movements

Simple model of participation in social movements created during the 2018 Changing Systems High Scho ... Read more
Simple model of participation in social movements created during the 2018 Changing Systems High School Fellows training at the Brown School's Social System Design Lab, Washington University in St. Louis. Sponsored by SkipNV.
sim26 runs
Education
3.504
#82

East Palestine March 31, 2026

diagram15 downloads
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-1.3
#83

demo 33126 a

diagram11 downloads
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-2.34
#84

SD-EPI

The purpose of this model is to provide a crosswalk between system dynamics model paremeters and epi ... Read more
The purpose of this model is to provide a crosswalk between system dynamics model paremeters and epidemiology
sim10 runs
Download Model
-2.61
#85

E3CD for Soc of Toxicology Demo (Beta)

sim46 runs
-3.24
#86

IHN demo

sim41 runs
-4.54
#87

Structure-behavior relationship ENGR 399

sim41 runs
-4.54
#88

SMART D&I conference 2024

sim39 runs
-5.06
#89

Explanations of Adoption from a Feedback Perspective

sim39 runs
-5.06
#90

Services concept model

sim36 runs
-5.84
#91

CHL CLD simulation model for teaching (beta)

sim54 runs
-6.1
#92

REDCapDemo

sim33 runs
-6.62
#93

NEF prototype

sim28 runs
-7.92
#94

USSY295c limits to growth exercise

sim24 runs
-8.96
#95

Maternal Health Game

sim23 runs
-9.22
#96

City model demo

sim19 runs
-10.26
#97

ENGR 399 structure-behavior relationship

sim18 runs
-10.52
#98

Resilency (mobile version)

sim16 runs
-11.04
#99

turnover-demo

sim11 runs
-12.34
#100

Center Model

sim10 runs
-12.6
#101

Demo for PQHS 419

sim9 runs
-12.86
#102

Community Health Game

sim9 runs
-12.86
#103

CHI 2

sim9 runs
-12.86
#104

Treatment model demo

sim9 runs
-12.86
#105

ENGR 398 FL23 Quiz2

sim6 runs
-13.64
#106

GIS demo

sim6 runs
-13.64
#107

Uploading data test

sim6 runs
-13.64
#108

MyTest

sim5 runs
-13.9
#109

UA proof of concept

sim5 runs
-13.9
#110

Multiplayer Demo

sim4 runs
-14.16
#111
sim4 runs
-14.16
#112

Limits to Growth - comparing LTM with loop impact method

sim5 runs
-14.16
#113

Demo for PolicyBridge

sim3 runs
-14.42
#114

SD-SEM SIR Example

sim2 runs
-14.68
#115

TestForms

sim2 runs
-14.68
#116

Treatment demo

sim2 runs
-14.68
#117

CHL 0226 demo

sim1 run
-14.94
#118

ENGR398-Nov 21, 2023

sim
-15.2
#119

In class demo

sim
-15.2
#120

PPATS Lancet Agriculture

sim
-15.2
#121

ENGR399SP26 Quiz 1 practice

sim
-15.2
#122

Lead CLD

sim
-15.2
#123

BCDI roundtable

sim
-15.2
#124

ENGR399 SP26 Quiz 1 Battery production

sim
-15.2
#125

ENGR399 SP26 Quiz 1 AI Workforce

sim
-15.2
#126

Advancing Academic Community Partnerships

sim
-15.2
#127

ENGR399 SP26 Quiz 1 CLD2

sim
-15.2
#128

ASAPCAN workshop

sim
-15.2
#129

ENGR399 SP26 Quiz 1 CLD1

sim
-15.2
#130

Workforce-quiz1

sim
-15.2
#131

SASS-500 example

sim
-15.2
#132

Polycrises demo

sim
-15.2
#133

PPATS Lancet Wildlife Trade

sim
-15.2
#134

CHL demo

sim
-15.2
#135

UNDIVIDED Cleveland Systems Change

sim
-15.2
#136

PPATS Lancet Agricultural Causal Map

sim
-15.2
#137

PPATS Livestock

sim
-15.2
#138

ENGR398Quiz4

sim
-15.2
#139

SG sd demo

sim
-15.2
#140

ENGR399 SP26 Quiz 1 LPG stock and flow diagram

sim
-15.2
#141

LPG CLD without labels

sim
-15.2
#142

ENGR398-quiz 3

sim
-15.2
#143

CAN CLD

sim
-15.2
#144

chl-demo-031626

sim
-15.2
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Uploading a Bundle from Zip

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Assemblies are self contained models that demonstrate common ways to connect together building blocks and that can be used as parts of other models. This is analogous to using prefabricated wall and roof pieces to construct a house.

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Sim App (Sim)

An interface that allows users to interact with a model.

Image of a sim

Sim apps allow users to interact with a model using buttons, sliders, knobs, tables, graphs, and storytelling. These interactions help users understand how parts of a system interact.

Interfaces are created by model authors in the Stella desktop software and can be uploaded to the isee Exchange™.

Model

A diagram that represents how elements in a system influence one another.

Image of a model

Models are mathematical representations of how elements in a system are connected and interact (e.g., ecosystems, organizations, supply chains). When running models on the isee Exchange™, results can be viewed in output devices like graphs and tables.

Models appear in the isee Exchange™ directory when authors upload them from the Stella® desktop software or create them with Stella Online™.

Causal Loop Diagram (CLD)

A map that represents the feedback structure of a system.

Image of a CLD

CLDs are high-level maps that represents the feedback structure of a system and easily communicate the essence of a model. They appear in the isee Exchange™ when authors upload them from the Stella desktop software or create them with Stella Online™.