Lean Practitioner Body of Knowledge

The IASSC Certified Lean Practitioner Body of Knowledge™ is an assembly of a comprehensive set of topics and subject matters that are intended to be representations of the universally and commonly accepted, minimum competencies and core proficiencies requisite of an IASSC Certified Lean Practitioner™.

This established IASSC Standards aim is to be diversely recognized as a relevant and practical version of the knowledge expectations of a Lean Practitioner. It consists of 21 individual subject matter topics.

IASSC Lean Certification Exams are constructed based upon the topics within the IASSC Lean Body of Knowledge. Through proctored examination, candidates are expected to demonstrate that they have an adequate level of competence in the topics defined within the IASSC Lean Body of Knowledge.

IASSC Certified Lean Practitioner Body of Knowledge Topics

1. Introduction to Lean – An introduction of Lean including definitions, benefits, principles and history. Blooms Taxonomy target level (max): Apply

2. Gemba (The Real Place) – A philosophy that reminds us to get out and spend time on the “floor” – the place where real action occurs. Blooms Taxonomy target level (max): Apply

3. Kaizen (Continuous Improvement) – A strategy where employees work together proactively to achieve regular, incremental improvements in the process. Blooms Taxonomy target level (max): Apply

4. KPIs (Key Performance Indicators) – Metrics designed to track and encourage progress towards critical goals of the organization. Blooms Taxonomy target level (max): Understand

5. Teamwork and Team Skills – Excluded from the Lean Practitioner Introductory BoK

6. MUDA (Wastes) / MURA (Fluctuation) / MURI (Overburden) – the three families of efficiency losses. Muda (Waste) being anything in the creation process that does not add value from the customer’s perspective. MURA (Fluctuation) being waste of unevenness or inconsistency and it works against efficiency, Mura creates many of the seven wastes that we observe, Mura drives Muda! By failing to smooth our demand we put unfair demands on our processes and people and cause the creation of inventory and other wastes. MURI (Overburden) to give unnecessary stress to our employees and our processes. Blooms Taxonomy target level (max): Understand

7. 5S – Sort (eliminate that which is not needed), Set In Order (organize remaining items), Shine (clean and inspect work area), Standardize (write standards for above), Sustain (regularly apply the standards). Blooms Taxonomy target level (max): Apply

8. Kano Model – Excluded from the Lean Practitioner Introductory Level BoK

9. Just-In-Time (JIT) – Excluded from the Lean Practitioner Introductory Level BoK

10. Bottleneck Analysis – Identify which part of the process limits the overall throughput and improve the performance of that part of the process. Blooms Taxonomy target level (max): Understand

11. Continuous Flow – Creation where work-in-process smoothly flows through production with minimal (or no) buffers between steps of the process. Blooms Taxonomy target level (max): Understand

12. Takt Time – The pace of production that aligns production with customer demand. Calculated as Planned Production Time / Customer Demand. Blooms Taxonomy target level (max): Understand

13. Value Stream Mapping – A tool used to visually map the flow of production. Shows the current and future state of processes in a way that highlights opportunities for improvement. Blooms Taxonomy target level (max): Understand

14. Flow diagram (or swim-lanes diagram) – Visual mapping of a transactional / cross-functional process showing tasks sequence for each actor on parallel lanes, to highlight complexity, lost time, irritants, thus showing improvement opportunities and project a target improved process. Blooms Level: Understand

15. Spaghetti diagram – Visual tool to represent the physical flow of products or movements of persons, highlighting wastes, safety or cross-flow quality risks. Blooms Level: Understand

16. Layout Planning – Excluded from the Lean Practitioner Introductory Level BoK

17. Single-Minute Exchange of Dies (SMED) – Excluded from the Lean Practitioner Introductory Level BoK

18. Heijunka (Level Scheduling) – Excluded from the Lean Practitioner Introductory Level BoK

19. Kanban (Pull System) – Excluded from the Lean Practitioner Introductory Level BoK

20. Jidoka (Zero Defect Principle) – Aiming for zero-defect, by preventing their occurrence, signalizing, reacting as quick as possible and solving definitively. This relies on various tools and techniques such as Autonomation, Andon, Poka-Yoke, Root-Cause Analysis and Quick Response Quality Control. Blooms Taxonomy target level (max): Understand

21. Andon – Visual feedback system for the plant / office “floor” that indicates production status, alerts when assistance is needed, and empowers operators to stop the process. Blooms Taxonomy target level (max): Apply

22. Poka-Yoke (Error Proofing) – Design error detection and prevention into production processes with the goal of achieving zero defects. Blooms Taxonomy target level (max): Understand

23. Root Cause Analysis – A problem solving methodology that focuses on resolving the underlying problem instead of applying quick fixes that only treat immediate symptoms of the problem. A common approach includes use of Ishikawa (fish-bone diagram) and 5 Whys.. Blooms Taxonomy target level (max): Understand

24. Risk Analysis – Excluded from the Lean Practitioner Introductory Level BoK

25. Total Productive Maintenance (TPM) – Excluded from the Lean Practitioner Introductory Level BoK

26. Six Big Losses – Excluded from the Lean Practitioner Introductory Level BoK

27. Overall Equipment Effectiveness (OEE) – Excluded from the Lean Practitioner Introductory Level BoK

28. Standardized Work – Documented procedures for production that capture best practices (including the time to complete each task) in order to avoid variability of practices and favoring sustainability of Kaizen improvements. Must be “living” documentation that is easy to change. Blooms Taxonomy target level (max): Apply

29. Sustainment – Excluded from the Lean Practitioner Introductory Level BoK

30. Visual Management – Visual indicators, displays and controls used throughout facilities to improve communication of information. Blooms Taxonomy target level (max): Apply

31. Short Interval Control / Active Supervision – Set of standardized management rituals to monitor Safety / Quality / Delivery / Cost performances in a timely manner to allow early reaction and daily improvements, involving field actors (in consistence with Gemba and collective intelligence logic): measurements at the workstation, stand-up operational meetings, Gemba walks, shift hand-overs, relying on the Visual Factory. Blooms Level: Understand

32. Hoshin Kanri (Policy Deployment) – Excluded from the Lean Practitioner Introductory Level BoK

33. Kaizen task-force workshops – Excluded from the Lean Practitioner Introductory Level BoK

34. Change management – Excluded from the Lean Practitioner Introductory Level BoK

35. DMAIC (Define, Measure, Analyze, Improve, Control) – Excluded from the Lean Practitioner Introductory Level BoK

36. SMART Goals – Goals that are: Specific, Measurable, Attainable, Relevant, and Time-Specific. Blooms Taxonomy target level (max): Apply

37. Stakeholder Management – Excluded from the Lean Practitioner Introductory Level BoK

38. PDCA (Plan, Do, Check, Act) – An iterative methodology for implementing improvements: Plan (establish plan and expected results), Do (implement plan), Check (verify expected results achieved), Act (review and assess; do it again). Blooms Taxonomy target level (max): Understand

The IASSC Lean Body of Knowledge™ and IASSC Certification Exams™ target the incorporation of the Bloom’s Taxonomy – Revised (2001) model. IASSC aims to define Cognitive level benchmarks for Lean Expert, Lean Leader and Lean Practitioner subject matter items within each corresponding Body of Knowledge. More information pertaining to how IASSC uses Blooms taxonomy can be reviewed here.

Levels of Cognition based on Bloom’s Taxonomy – Revised (2001). These levels are from “Levels of Cognition” (from Bloom’s Taxonomy – Revised, 2001). They are listed in order from the least complex to the most complex.

Remember: Recall or recognize terms, definitions, facts, ideas, materials, patterns, sequences, methods, principles, etc.

Understand: Read and understand descriptions, communications, reports, tables, diagrams, directions, regulations, etc.

Apply: Know when and how to use ideas, procedures, methods, formulas, principles, theories, etc.

Analyze: Break down information into its constituent parts and recognize their relationship to one another and how they are organized; identify sub-level factors or salient data from a complex scenario.

Evaluate: Make judgments about the value of proposed ideas, solutions, etc., by comparing the proposal to specific criteria or standards.

Create: Put parts or elements together in such a way as to reveal a pattern or structure not clearly there before; identify which data or information from a complex set is appropriate to examine further or from which supported conclusions can be drawn.