Problem Statements

What is a Problem Statement?

A problem statement is a concise, factual description of an issue, gap, or opportunity for improvement. It clearly defines the problem that needs to be addressed without jumping to conclusions about causes or solutions.

In Lean Six Sigma, a well-written problem statement creates alignment among stakeholders and establishes a common understanding of what is happening, where it is occurring, who is affected, and why it matters.

An effective problem statement serves as the foundation for project selection, root cause analysis, and continuous improvement efforts.

Why Problem Statements Matter

Many improvement initiatives struggle not because teams lack tools or data, but because they are trying to solve the wrong problem. A well-crafted problem statement helps organizations:

Clarify the issue that requires attention
Focus improvement efforts on the right opportunity
Align stakeholders around a common objective
Establish a baseline for measuring improvement
Prevent teams from jumping prematurely to solutions
Improve communication and decision-making

The quality of the problem statement often determines the quality of the improvement effort that follows.

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An image summarizing the steps required to complete a 5W2H problem statement.

When to Use a Problem Statement

Problem statements can be used whenever an organization needs to better understand and define a challenge before taking action. Common applications include:

Lean Six Sigma projects
Process improvement initiatives
Corrective action investigations
Customer complaint analysis
Strategic planning activities
Risk management exercises
Project charters
Daily operational problem-solving

Problem statements are particularly valuable during the Define phase of DMAIC and when developing project charters.

How the Problem Statement Works

RPM-Academy recommends using the 5W2H framework to construct effective problem statements. The 5W2H approach encourages teams to answer seven key questions:

What is the problem?
Where is the problem occurring?
When does the problem occur?
Who is affected by the problem?
Why is the problem important?
How does the problem impact customers, employees, or the organization?
How large is the problem in measurable terms?

By answering these questions, the 5W2H, teams create a clear, objective description of the current situation without making assumptions about root causes or potential solutions.

Organizations looking for a structured approach to writing problem statements can also explore the FREE Mondai mobile app, which uses the 5W2H methodology to guide users through the process of documenting improvement opportunities.

Key Concepts in Problem Statements

Here are some of the concepts and terms to consider when writing an effective problem statement:

Focus on Facts: Effective problem statements describe observable facts and measurable conditions rather than opinions or assumptions.
Avoid Root Cause Assumptions: The purpose of a problem statement is to define the problem, not explain why it exists.
Quantify the Problem: Whenever possible, include data that describes the size, frequency, cost, or impact of the issue.
Be Specific: Vague problem statements often lead to vague solutions. Clearly identify where, when, and how the issue occurs.
Remain Solution Neutral: Avoid embedding preferred solutions into the problem statement.

The goal is to understand the problem before determining how it should be solved.

Common Pitfalls to Avoid

When writing problem statements you should avoid these types of errors:

Jumping to Solutions: "We need a new software system." This is a solution, not a problem statement.
Assigning Blame: "Employees are not doing their jobs properly." Problem statements should focus on processes and outcomes rather than individuals.
Being Too Vague: "Customer service needs improvement." This lacks sufficient detail to guide meaningful analysis.
Assuming Root Causes: "The problem is caused by poor training." Root causes should be validated during analysis rather than assumed upfront.
Ignoring Data: Problem statements should include measurable evidence whenever possible.

Where Problem Statements Fit in Lean Six Sigma

Problem statements are most commonly developed during the Define phase of DMAIC. They help establish the foundation for:

Project Charters
Voice of the Customer (VOC)
Critical-to-Quality (CTQ) Requirements
SIPOC Diagrams
Process Mapping
Root Cause Analysis
Cause-and-Effect Diagrams
Data Collection Planning

A strong problem statement ensures that improvement efforts remain focused on solving the right problem.

What is a Problem Statement in Simple Terms?

A problem statement is a clear description of an issue that needs to be solved. It helps teams understand what is happening, who is affected, and why the problem matters before searching for solutions.