Systems Mapping: How to See the Big Picture of Complex Social Problems

You want to fix homelessness? Great. But can you draw it?

That’s basically the challenge of Chapter 7 of Systems Thinking for Social Change. David Peter Stroh walks through Stage 2a of the systems thinking process: using systems mapping to understand current reality. Not what you wish reality was. Not what your grant proposal says it is. What’s actually happening, why, and how everything connects.

The pioneering social psychologist Kurt Lewin said, “If you really want to understand something, try to change it.” Stroh builds on this. Too often, people argue for solutions without really understanding how the current system operates. Or why it operates that way. The result? Limited resources get thrown at fixes that make no difference in the long run. Or worse, they make things worse.

This chapter gives you the tools to stop guessing and start seeing.

Step 1: Talk to People (The Right People)

The first task is systems interviews. You need to talk to a wide range of stakeholders. Not just the usual suspects.

Stroh says the people running mapping projects often skip the most senior decision-makers because they seem hard to reach. They also skip administrative staff, people whose work touches the issue indirectly, and the ultimate beneficiaries. In these cases, that means homeless people, patients, students, and formerly incarcerated people.

For the Calhoun County project to develop a ten-year plan to end homelessness, Stroh and colleague Michael Goodman interviewed fifty people in a county of one hundred thousand. They talked to:

• Leaders responsible for the county’s overall social and economic health
• People who influenced policies related to the causes of and solutions to homelessness
• Service providers who interacted with homeless people directly
• Homeless people themselves

Why interviews instead of surveys? Because interviews let you uncover not just what people think, but why they think it. You get the reasoning behind the conclusions. You also build real relationships, which matter a lot when you need to shift how a system operates.

The Interview Questions That Actually Work

Stroh shares a list of interview questions that can be adapted for any issue. They’re designed to build systemic insight rather than just collect opinions. Here are the key ones:

• What has been happening around this problem over time? Does it follow a pattern?
• State the problem as: “Why has X been happening despite our best efforts to achieve Y?” (Use “why” not “how” to avoid assuming a solution.)
• What are the earliest roots of this problem? What has been tried before, and what happened?
• What is already working? How do people survive in the current system?
• How would senior decision-makers see this issue? How would other stakeholders, including beneficiaries, see it?
• What other causes are feeding this system? What unintended effects does it produce?
• How do I or my organization contribute to this problem through what we say, do, or think?
• What is the apparent purpose of this system? What outcomes are people’s efforts actually producing, versus what they want?

That last question is especially sharp. It forces you to confront the gap between intention and reality.

Step 2: Organize What You Hear

Once you have the interviews done, you need to make sense of the mess. Stroh gives four screens for organizing information:

Screen 1: Listen for what’s curious, confusing, or contradictory. The focusing question itself (“Why, despite our best efforts, have we been unable to…?”) helps with this. In Calhoun County, people wanted to understand how homeless people and vacant housing existed side by side. In South Dakota, leaders wondered why some small towns had better housing stock than others.

Screen 2: Separate data from interpretation. Learn not just what people think but why. Different people interpret the same facts differently. Policy makers assumed drug busts reduce crime. But drug busts actually reduce supply, driving up prices, which makes people commit more crimes to afford drugs. Both groups were looking at the same reality and drawing opposite conclusions.

Screen 3: Identify key variables. Systems thinking extends this by looking for interdependencies among factors instead of just making a list. It also mixes quantitative factors (what you can measure) with qualitative ones (how people think and feel). Vague factors like “strategy” get translated into trackable ones like “level of investment in local agriculture.”

Screen 4: Look for recognizable story lines. Can you spot a Fixes That Backfire pattern? A Shifting the Burden dynamic? Recognizing these archetypes from earlier chapters gives you a framework for making sense of complex, sometimes conflicting information.

One important note: don’t expect to find everything you need. Information gaps are normal. Stroh suggests two responses. First, approach systems change as a learner. Make hypotheses, take actions, learn from results. Second, let the gaps trigger useful research questions.

Step 3: Build the Systems Map

This is where the chapter gets really concrete. Stroh walks through six different cases, each one illustrating a different archetype in action. Here are the highlights.

Criminal Justice: Fixes That Backfire

The After Prison Initiative brought together a hundred progressive leaders to work on mass incarceration. They discovered that the primary driver of mass incarceration wasn’t violent crime itself. It was the fear of others, especially people of color, rooted in structural racism.

Mass incarceration temporarily relieves that fear. But 95 percent of incarcerated people eventually get released. They come out with serious disadvantages: poor health, disrupted families, restricted rights to education, employment, housing, and voting. These disadvantages reduce access to resources, which increases the likelihood of committing another crime within three years.

The Bureau of Justice Statistics backs this up: about half of released prisoners end up back in prison within three years. And structural racism breeds more fear. White Americans overestimate the proportion of crime committed by people of color by 20 to 30 percent. The fear spiral continues even though the actual crime rate has been dropping for decades.

The first map showed this core Fixes That Backfire loop. Then a second, richer map added more vicious cycles: the prison lobby that profits from mass incarceration, tight parole restrictions that send people back for technical violations, and political resistance to programs that could actually help.

Homelessness: Shifting the Burden

In Calhoun County, the community had been trying to end homelessness for years with little progress. Service providers met regularly but competed for funding instead of collaborating.

The systems map revealed something uncomfortable. The shelter and emergency response systems that everyone depended on were actually part of the problem. Shelters helped people cope temporarily, but they also made the problem less visible. Less visibility meant less motivation to invest in real solutions like permanent housing.

Shelter providers were funded based on bed occupancy. Full shelters looked like success. But full shelters are the opposite of ending homelessness. Donors renewed funding for organizations that were good at the quick fix, which drained resources from the fundamental solution: safe, affordable permanent housing with access to support services.

This insight led to a real shift. Service providers collectively agreed to redirect their next round of HUD funding from transitional housing to permanent supportive housing. The ten-year plan was funded by the state. In its first six years (2007 to 2012), homelessness in Calhoun County decreased by 14 percent, even during the 2008 economic crisis that brought a 34 percent increase in unemployment.

Rural Housing: Limits to Growth

In South Dakota, a diverse group of state and local leaders gathered to figure out why it was so hard to increase affordable rural housing. Some communities had figured it out. Others hadn’t.

The analysis showed a Limits to Growth pattern. Successful communities had built housing that attracted people and jobs, creating a growth engine. But less successful communities lacked the infrastructure for development, which made it hard to attract private developers.

Additional growth engines existed: housing development creates jobs, jobs increase tax revenue, tax revenue strengthens infrastructure. But these pumps had to be primed quickly enough to overcome the “seepage.” Without enough infrastructure, communities couldn’t attract funding. Without enough jobs, perceived economic prospects declined. Weak prospects led to under-appraised housing, scaring off potential buyers.

The takeaway was clear: early investment in community infrastructure for development is the critical first step.

Early Childhood Education: Success to the Successful

In Connecticut, the William Caspar Graustein Memorial Fund convened a multi-stakeholder process to create a blueprint for a statewide early-childhood system that works for all kids regardless of race, income, or ability.

The core dynamic was Success to the Successful. Families with higher incomes and political influence generated more resources for their children over time. Families at risk found it increasingly harder to give their kids early foundations for success. The rich got richer. The poor got poorer. Community bonds among lower-income families frayed under the pressure.

Parents at risk couldn’t access affordable quality child care, which reduced their ability to earn more income. Their children were less prepared for school and over time less able to generate the earning power needed to escape the cycle.

It got worse. Wealthier families gave away a smaller percentage of their income (1.3 percent for the top 20 percent versus 3.2 percent for the bottom 20 percent). Growing income inequality reduced tax revenue available for social services. Less investment in early interventions meant less school readiness, which weakened the workforce, which put more pressure on public resources.

A profound insight emerged: the people trying to redesign the system subscribed to the same biased assumptions they were trying to fix. They favored formal structures over informal community networks, state control over local control, and quantitative measures over qualitative ones. Often against their own better judgment.

Iowa Education: Accidental Adversaries

The Iowa Department of Education and the state’s Area Education Agencies wanted to work together but kept undermining each other without meaning to.

When the department felt unable to provide adequate statewide direction, it designed and rolled out new programs. But these programs made it harder for the local agencies to allocate resources to their existing initiatives. So each agency would either customize the state’s programs to fit their own work or disengage entirely. This inconsistency frustrated the department, which responded by rolling out even more programs.

Classic headquarters-versus-field tension. The Accidental Adversaries archetype helped both sides see that neither was acting in bad faith. They were just stuck in a pattern that hurt both of them and, more importantly, hurt Iowa’s kids.

The Bathtub Analogy in Action

For the homelessness case, Stroh and Goodman noticed the problem moved in stages. Some people were at risk. Some became homeless. Homeless people cycled through shelters, the woods, emergency rooms, jail, and friends’ couches. Very few moved into permanent housing.

Drawing this as a bathtub diagram made the solution obvious: reduce the inflows into homelessness and accelerate the outflows into permanent housing.

In the South Dakota community of Faulkton, the bathtub approach transformed a study with seventeen recommendations into just two strategies. Twenty-eight percent of the town’s housing needed major repairs. Without action, that would grow to 38 percent in twenty years. The two strategies: slow down the decay of existing housing through repairs, and increase new housing while removing dilapidated stock.

Balancing Simplicity and Complexity

One of the trickiest parts of systems mapping is making the map simple enough to communicate but complex enough to capture reality. Stroh outlines several approaches:

One archetype, no extra loops. The Iowa Accidental Adversaries case is the best example. Even with just one archetype, they developed the story in two steps. Sometimes one archetype is plenty.

One archetype, multiple enriching loops. The rural housing case added multiple growth engines and multiple limits, but they all told the same Limits to Growth story. The early-childhood case had multiple vicious cycles, but they all amplified the same Success to the Successful dynamic.

Multiple archetypes. The criminal justice case used both Fixes That Backfire and Shifting the Burden to capture the full picture.

Bathtub Analogy. Sometimes on its own (Faulkton housing), sometimes alongside archetypes (Calhoun County homelessness).

Interdependence mapping. A simpler approach where people list factors affecting an issue and draw connections between them. It’s a quick way to help diverse stakeholders see that their work is connected.

Computer modeling and simulation. For when you need to capture more complexity, validate the map against known behavior, or test different policy options.

Why This Matters

Here’s the thing that comes through in every case. People working on these problems generally share similar aspirations. They want to end homelessness, reduce incarceration, educate kids, build healthy communities. But they have very different perceptions of what the real difficulty is. The shelter provider sees one thing. The policy maker sees another. The person sleeping under a bridge sees something else entirely.

Systems mapping doesn’t pick a winner among these perspectives. It puts them all on the same page. Literally. And once people can see how their piece connects to everyone else’s piece, the conversations change. They stop arguing about who’s right and start asking how the whole thing works.

That early, honest look at current reality is what makes everything else possible. Skip it, and you’re back to arguing for your favorite solution based on your limited view. Do it well, and you build the shared understanding needed to actually change something.

This is post 8 in a series retelling “Systems Thinking for Social Change” by David Peter Stroh (ISBN: 978-1-60358-580-4). The series covers the key ideas from the book in a conversational, accessible format.

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