Project Management / Article

Understanding Problem Definition

Daniel Croft-Bednarski
November 23, 2022
6 Min Read
A continuous improvement project will fail if the team doesn't truly understand the issue. In this guide, learn how to avoid vague complaints and jump-to-solution traps by writing highly accurate, measurable problem statements using the 5W1H and Is/Is Not frameworks.
Problem Statement
Updated 2026

“If I were given one hour to save the planet, I would spend 59 minutes defining the problem and one minute resolving it.”

— Albert Einstein

This sentiment may appear extreme, but it emphasizes the critical importance of precisely and clearly defining problems. Organizations rely on continuous improvement projects to drive meaningful change and streamline operations, but success relies entirely on one factor: a thorough understanding of the problem at hand.

A strong, well-articulated problem statement is the absolute foundation of any successful process improvement project, laying the groundwork for effective solutions and measurable results. In this guide, we will explore why problem definition matters, how to use the 5W1H and “Is / Is Not” frameworks, and the common traps that derail investigations before they even begin.

What is a Problem Statement?

An effective problem statement is a concise one-to-two sentence description of the specific issue or defect a project is seeking to address. But it is much more than just a description—it is a vital strategic communication tool for your entire organization.


Maintains Project Focus

It is not enough to simply say, “We have a problem.” A defined statement prevents scope creep. If team discussions start drifting toward unrelated issues, the project lead uses the problem statement as an anchor to bring focus back to the immediate goal.

Secures Stakeholder Buy-In

Think of yourself as a captain persuading a crew to embark on a dangerous journey. You are far more likely to get the funding, resources, and sponsor sign-off you need if you can clearly articulate exactly what the journey is and why it matters to the business.



What Makes a Good Problem Statement?

Before you begin writing, you must understand the criteria for success. A truly effective problem definition must adhere to a strict set of rules:

  • Outline the negative points of the current situation objectively, using measurable facts.
  • Explain why it matters by defining the impact on the customer or the business’s bottom line.
  • Be clear and precise enough to use as an instant communication tool for executives and operators alike.
  • NOT suggest a solution. The problem statement should describe the pain, not the medicine.


How to Define a Problem (5W1H & Is/Is Not)

The most effective way to define a problem is to systematically answer the 5W1H questions: Who, What, Where, When, Why, and How. Answering these questions automatically structures your problem into a concise statement.

Interactive 5W1H Builder

Fill in the fields below to see how answering these questions dynamically generates a professional problem statement.

Regarding [Who/Asset], [What] was observed at [Where] during [When]. This has resulted in [How Big], which is causing [Why it matters].

The “Is / Is Not” Technique

To take your definition a step further and drastically narrow your focus, use an Is / Is Not matrix. By explicitly defining what the problem isn’t, you immediately eliminate false root causes and save hours of wasted investigation time.

QuestionIS (The Problem)IS NOT (Out of Scope)
What is the defect?Surface scratches on the metal casingDents, cracks, or internal failures
Where is it happening?Geographically isolated to Assembly Line ANot occurring on Lines B or C
When is it seen?Sporadically, only during the night shiftNot occurring during day or swing shifts


A Perfect Problem Statement Example


Let’s look at how the 5W1H questions culminate into a final, actionable sentence.

This statement to the right is clear, specific, and actionable. It identifies the exact problem, quantifies it with data, outlines who it affects, and states the brutal consequences.

With a statement like this, everyone involved knows exactly what needs to be fixed and why it is crucial to act immediately.

The Final Result

“Our main assembly line has experienced a 20% decline in productivity over the past three months, leading to an estimated revenue loss of $200,000 and severe customer dissatisfaction due to subsequent shipping delays.”



Avoid These Problem Definition Mistakes

There are several common pitfalls teams encounter when trying to define a problem. Falling into these traps will prevent your problem statement from effectively leading to the true root cause. Click the cards below to reveal the danger of each trap.

Documenting Symptoms

Click to reveal

The Trap

Describing a list of confusing symptoms creates chaos when trying to isolate an issue. Focus purely on the primary measurable failure, not the noise around it.

Including the Cause

Click to reveal

The Trap

Assuming you know why it happened before the investigation starts. Root cause investigation should strictly happen only after the problem is cleanly defined.

Jumping to Solutions

Click to reveal

The Trap

Stating “We need a new machine” is a solution, not a problem statement. This creates intense cognitive bias and prevents the team from exploring cheaper, systemic fixes.

Assigning Blame

Click to reveal

The Trap

Blame is a natural reflex when things go wrong, but “Operator error” is a dead end. Always target the process that allowed the error to occur, not the person.


Conclusion

Problem statements are a vital first step in completing a successful project. They make it undeniably clear to the team what needs to be addressed, preventing scope creep and ensuring resources are focused on the correct issue. Furthermore, a highly quantified statement supports stakeholder buy-in and makes gaining sponsor sign-off much easier.

By utilizing the 5W1H methodology and the Is / Is Not technique, you can strip away assumptions, blame, and early solutions to reveal the true, measurable problem hiding underneath.


References

Dery, D., 2000. Agenda setting and problem definition. Policy studies21(1), pp.37-47.

Downey, G., 2005. Are engineers losing control of technology?: From ‘problem solving’to ‘problem definition and solution’in engineering education. Chemical Engineering Research and Design83(6), pp.583-595.

Daniel Croft-Bednarski

Continuous Improvement Manager
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Daniel Croft-Bednarski is a Continuous Improvement Manager with a passion for Lean Six Sigma and continuous improvement. With years of experience in developing operational excellence, Daniel specializes in simplifying complex concepts and engaging teams to drive impactful changes.

10+ Years Experience
50+ Projects Led
LSS Black Belt