Peter Hovmand's Work


We found 148 items
Include in results:
#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
sim5,090 runs, 8 downloads
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Environment Education Health
3374.22
#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
944.0883
#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
diagram2,002 downloads
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515.32
#9

transfusions

diagram1,947 downloads
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501.02
#10

ENGR 399 Technology failures

sim1,787 runs
449.42
#11
diagram1,516 downloads
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388.96
#12

SDDL1

model1,426 downloads
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370.76
#13

LP CLD

diagram1,442 downloads
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369.72
#14

ENGR 398 FL23 Quiz2 loop type

sim1,480 runs
369.6
#15

Specialism

diagram1,411 downloads
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361.66
#16

LB CLD

diagram1,411 downloads
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361.66
#17

Generalism

diagram1,403 downloads
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359.58
#18

housing practice

diagram1,397 downloads
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358.02
#19

Human Resiliency

Simple proof-of-concept model of human resiliency.
sim1,432 runs
356.24
#20

School

model1,344 downloads
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349.44
#21

USSY demo cld

diagram1,337 downloads
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342.42
#22

ENGR389FL23-extra credit

sim1,310 runs
325.4
#23

ENGR 398 FL23 Quiz2 dominant loops

sim1,295 runs
321.5
#24

ROOSCLD3

diagram1,237 downloads
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316.42
#25

Org culture v1

diagram1,227 downloads
Download Model
313.82
#26

Demo 1

diagram1,157 downloads
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295.62
#27

Housing demo 2

diagram1,151 downloads
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294.06
#28

DW v2

diagram1,133 downloads
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289.38
#29

DW v1

diagram1,126 downloads
Download Model
287.56
#30

Chicken and egg demo

diagram1,119 downloads
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285.74
#31

USSY demo CLD 2

diagram1,063 downloads
Download Model
271.18
#32

test1010

diagram1,000 downloads
Download Model
254.8
#33

ENGR 398 FL23 Quiz2 Loop Scores

sim1,038 runs
254.68
#34

test cld 3

diagram972 downloads
Download Model
247.52
#35

Telescope Time

model941 downloads
Download Model
244.66
#36

American Samoa Draft CLD

diagram952 downloads
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242.32
#37

chicken and egg SFD example

model921 downloads
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239.46
#38

USSY demo

model864 downloads
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224.64
#39

ENGR 398 AI in undergrad education v0

diagram873 downloads
Download Model
221.78
#40

HEI demo

sim886 runs, 3 downloads
Download Model
220.74
#41

USC295cSP22

sim888 runs
Education
215.68
#42

LTM pratice - epidemic

sim885 runs
214.9
#43

LTM pratice - no epidemic

sim883 runs
214.38
#44

USY295c

model823 downloads
Download Model
213.98
#45

Green Space CLD

diagram819 downloads
Download Model
207.74
#46

LTM pratice - endemic

sim843 runs
203.98
#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.
sim130 runs, 154 downloads
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Fit statistics Theil inequality
184.75934
#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
142.88
#51

AI to detect plagarism

diagram478 downloads
Download Model
119.08
#52

Structure-behavior relationship

sim144 runs, 1 download
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methodology loop impact loop scores limits to growth
112.3
#53
diagram449 downloads
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111.54
#54

Developmental-transitions

sim413 runs
92.18
#55

USSY 295c SIR Exercise

sim374 runs
82.04
#56

Student Organization

model294 downloads
Download Model
76.44
#57

BETTr

sim350 runs
75.8
#58
model287 downloads
Download Model
74.62
#59

LTM practice - L4

sim342 runs
73.72
#60

Granovetter's threshold model

sim329 runs
70.34
#61

LTM practice - L5

sim324 runs
69.04
#62

CHL CLD simulation model for teaching

sim320 runs
68
#63

LTM practice - L2

sim290 runs
60.2
#64

LTM practice - L1

sim281 runs
57.86
#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

demo042525

model190 downloads
Download Model
49.4
#68

PRC-screening

sim225 runs
43.3
#69
Coupled Natural Human (CNH) systems demonstration.
sim186 runs
35.71
#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

sim115 runs
14.7
#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

demo2

model30 downloads
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7.8
#79

East Palestine March 31, 2026

diagram48 downloads
Download Model
7.28
#80

NEF 2

sim82 runs
6.12
#81

Org Culture

sim82 runs
6.12
#82

demo 33126 a

diagram34 downloads
Download Model
3.64
#83

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
#84

Causal loop diagram of gun violence ecosystem

diagram17 downloads
Download Model
-0.78
#85

CHL CLD simulation model for teaching (beta)

sim54 runs
-1.16
#86

CLD test

diagram13 downloads
Download Model
-1.82
#87

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
-2.35
#88

E3CD for Soc of Toxicology Demo (Beta)

sim46 runs
-3.24
#89

IHN demo

sim41 runs
-4.54
#90

Structure-behavior relationship ENGR 399

sim41 runs
-4.54
#91

Explanations of Adoption from a Feedback Perspective

sim39 runs
-5.06
#92

SMART D&I conference 2024

sim39 runs
-5.06
#93

Services concept model

sim36 runs
-5.84
#94

REDCapDemo

sim33 runs
-6.62
#95

NEF prototype

sim28 runs
-7.92
#96

USSY295c limits to growth exercise

sim24 runs
-8.96
#97

Maternal Health Game

sim23 runs
-9.22
#98

City model demo

sim19 runs
-10.26
#99

ENGR 399 structure-behavior relationship

sim18 runs
-10.52
#100

Resilency (mobile version)

sim16 runs
-11.04
#101

turnover-demo

sim11 runs
-12.34
#102

Center Model

sim10 runs
-12.6
#103

Community Health Game

sim9 runs
-12.86
#104

Treatment model demo

sim9 runs
-12.86
#105

CHI 2

sim9 runs
-12.86
#106

Demo for PQHS 419

sim9 runs
-12.86
#107

Uploading data test

sim6 runs
-13.64
#108

ENGR 398 FL23 Quiz2

sim6 runs
-13.64
#109

GIS demo

sim6 runs
-13.64
#110

UA proof of concept

sim5 runs
-13.9
#111

Limits to Growth - comparing LTM with loop impact method

sim5 runs
-13.9
#112

MyTest

sim5 runs
-13.9
#113

Multiplayer Demo

sim4 runs
-14.16
#114
sim4 runs
-14.16
#115

Demo for PolicyBridge

sim3 runs
-14.42
#116

TestForms

sim2 runs
-14.68
#117

Treatment demo

sim2 runs
-14.68
#118

SD-SEM SIR Example

sim2 runs
-14.68
#119

CHL 0226 demo

sim1 run
-14.94
#120

PPATS Lancet Agriculture

sim
-15.2
#121

SG sd demo

sim
-15.2
#122

ENGR399SP26 Quiz 1 practice

sim
-15.2
#123

Advancing Academic Community Partnerships

sim
-15.2
#124

In class demo

sim
-15.2
#125

CAN CLD

sim
-15.2
#126

ENGR398-quiz 3

sim
-15.2
#127

LPG CLD without labels

sim
-15.2
#128

ENGR398Quiz4

sim
-15.2
#129

PPATS Lancet Agricultural Causal Map

sim
-15.2
#130

UNDIVIDED Cleveland Systems Change

sim
-15.2
#131

PPATS Lancet Wildlife Trade

sim
-15.2
#132

Polycrises demo

sim
-15.2
#133

Workforce-quiz1

sim
-15.2
#134

Urban Agenda Homeownership

sim
-15.2
#135

ENGR399 SP26 Quiz 1 CLD1

sim
-15.2
#136

ENGR399 SP26 Quiz 1 AI Workforce

sim
-15.2
#137

ENGR399 SP26 Quiz 1 Battery production

sim
-15.2
#138

CHL FS CLD interface demo 06-22-26

sim
-15.2
#139

BCDI roundtable

sim
-15.2
#140

ENGR399 SP26 Quiz 1 CLD2

sim
-15.2
#141

ASAPCAN workshop

sim
-15.2
#142

Lead CLD

sim
-15.2
#143

ENGR399 SP26 Quiz 1 LPG stock and flow diagram

sim
-15.2
#144

SASS-500 example

sim
-15.2
#145

CHL demo

sim
-15.2
#146

PPATS Livestock

sim
-15.2
#147

chl-demo-031626

sim
-15.2
#148

ENGR398-Nov 21, 2023

sim
-15.2
X

Uploading a Bundle from Zip

Instead of creating bundles, categories, and assemblies one by one, you can upload a single zip file that contains all of your bundle's content. To create your zipped bundle, make a folder with your bundle's name and add subfolders with your categories' names. The folder tree should have the same structure that you want the categories to have in your bundle. Place your assembly .stmx files in the appropriate category folders, then zip your bundle folder and upload it using the Upload Bundle from Zip link above.

Assemblies, Bundles, and Categories

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.

Bundles are groups of assemblies with a common use or theme. For example, a Health Care bundle might contain a variety of assemblies that aid in creating health care models. When you download assemblies from the isee Exchange™, you download an entire bundle, rather than individual assemblies.

Categories are subgroups of assemblies within a bundle. For example, a Health Care bundle might contain a Funding category for assemblies related to the management of hospital funds. All assemblies must be assigned to a category—they cannot be assigned to the root of a bundle.

Assemblies, bundles, and categories can be created and uploaded to the isee Exchange™ via the options on the Manage My Assemblies page. To learn more, visit our help pages, or take our assemblies tutorial.

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™.