Understanding, mastering, and improving processes — that’s the essence of Business Process Management, or BPM.
Often perceived as a tool for experts or large organizations, BPM is in reality an approach accessible to all companies, regardless of size or sector.
Its goal: to manage processes in a way that creates smooth, controlled, and sustainable performance.
But for BPM to deliver results, it must rely on a rigorous method. That’s where Lean Six Sigma (LSS) comes in. Through its structured DMAIC cycle (Define, Measure, Analyze, Improve, Control), Lean Six Sigma gives BPM its full potential — turning it into a living, continuously improving, and well-controlled system.
Why talk about BPM?
In every organization, processes already exist. They’re part of daily life, but they’re not always visible or well-managed.
A quote that lingers in an inbox, a duplicate order, an incomplete file… These dysfunctions are rarely about competence — they stem from a lack of process management.
BPM addresses this challenge: see, understand, and improve.
It allows companies to:
- Map processes end to end
- Identify weak points
- Automate what can be automated
- Align day-to-day work with overall strategy
However, without a structured approach, BPM can end up as just a nice process map hanging on a wall.
That’s where Lean Six Sigma gives BPM its operational strength.
BPM and Lean Six Sigma: two complementary approaches
BPM and Lean Six Sigma share the same goal — making processes more reliable and creating long-term value.
Their complementarity is natural:
- BPM structures and visualizes processes, establishes management logic, and defines responsibilities
- Lean Six Sigma, through DMAIC, provides the method to analyze causes, reduce variation, and standardize performance
Together, they turn understanding into action — and action into control.
The DMAIC cycle fits naturally within BPM: - Define: Identify the process to manage, clarify objectives and key indicators
- Measure: Collect performance data through BPM (lead times, error rates, volumes)
- Analyze: Detect root causes of issues found within process flows
- Improve: Redesign the process, automate or simplify key steps
- Control: Establish continuous management with dashboards and improvement routines
BPM provides the map, and Lean Six Sigma provides the method to exploit and master it.
Why BPM is a lever for sustainable performance
Sustainable performance is the ability to maintain efficiency over time — to adapt without losing control.
This stability depends on well-defined, measured, and controlled processes.
BPM fosters durability through three key dimensions:
- Visibility: everyone shares the same understanding of how processes truly work
- Control: standards and indicators are clear, tracked, and updated
- Continuous improvement: processes evolve based on data and field feedback
With Lean Six Sigma, this dynamic becomes structured and measurable.
Measurement and analysis tools (SIPOC, VSM, Pareto charts, Ishikawa diagrams, control charts, etc.) connect BPM strategy to concrete results — fewer errors, smoother operations, and higher reliability.
The key stages of BPM — through the DMAIC lens
Identify key processes (Define)
Everything starts with choosing the processes that create the most value. Lean Six Sigma helps prioritize using objective criteria: frequency of issues, customer impact, and cost. The project is defined with a clear charter (SIPOC, objectives, scope) — the foundation of BPM
Map the processes (Measure)
BPM mapping or BPMN diagrams provide an overview. Lean Six Sigma complements this with real performance data: cycle times, nonconformities, customer feedback. This makes process management fact-based rather than perception-based.
Analyze dysfunctions (Analyze)
Here lies the true synergy between BPM and LSS. Measured data helps identify root causes using analytical tools such as 5 Whys, Ishikawa, or FMEA. It’s where we understand where and why a process fails.
Improve and stabilize (Improve)
Corrective actions are then implemented: simplifying flows, removing redundancies, automating tasks via digital BPM (workflow, RPA). Lean principles eliminate waste, while Six Sigma ensures the reliability of results.
Manage and sustain performance (Control)
This is where BPM shows its full value. Improved processes are integrated into the management system and tracked through key metrics. Control charts, dashboards, and continuous improvement routines sustain results over time. It’s no longer about one-time improvement — it’s about ongoing process control.
Concrete examples of BPM and Lean Six Sigma synergy
Industry: A production site maps maintenance processes with BPM. DMAIC projects uncover root causes of recurring downtime, increasing machine availability by 15%.
Services: A telecom company uses BPM to visualize customer response times. The related LSS project reduces average response time by 30%.
Logistics: A DMAIC project on order preparation processes helps adjust BPM workflows, cutting shipping errors in half.
Public sector: A local authority models its grant approval process using BPM. Lean Six Sigma then standardizes key steps and automates notifications, halving processing times.
In every case, BPM provides structure — and Lean Six Sigma optimizes and stabilizes it.
The tangible benefits of combining BPM and Lean Six Sigma
Integrating BPM and Lean Six Sigma means:
- Ensuring improvement based on data, not intuition
- Moving from one-off projects to continuous process management
- Sustaining gains through the DMAIC Control phase
- Building a shared culture among managers, frontline teams, and support functions
- Increasing agility through dynamic process monitoring
In essence, BPM gives structure, while Lean Six Sigma brings method and discipline. Together, they build measurable, sustainable performance.
Key takeaways
- BPM (Business Process Management) helps visualize, manage, and improve processes for efficiency and sustainability
- Lean Six Sigma adds method and rigor, particularly through the DMAIC cycle (Define, Measure, Analyze, Improve, Control)
- The BPM–LSS duo links process mapping to performance measurement and operational control
- BPM provides structure; Lean Six Sigma provides analysis and improvement
- Together, they turn data into decisions, and decisions into sustainable performance
- BPM and LSS foster a shared culture of continuous improvement
- The Control phase ensures long-term stability and ongoing monitoring
More than just a management tool, this integrated approach becomes a true management philosophy — where data informs choices, and discipline ensures performance.
