Transforming a company with Critical Chain and Theory of Constraints in production to become more competitive


  • Critical Chain + Theory of Constraints + Planning Software trainings of the key actors.

  • Focus on the constraint: implementation of Critical Chain Project Management methodology in the Design Office.

  • Implementation of new rules in the Design Office.

  • Creation of new KPIs for the Design Office, the Methods Department and for Production.

  • Deployment of Critical Chain on the whole portfolio, scheduling and modelling of complete projects.

  • Reorganization: creation of a S&OP service. 

  • TOC + Lean in Production.

  • Drastic reduction of work-in-progress (WIP) in the workshop thanks to the "2 for 1" rule

  • Reconfiguration of the Advanced Production System.

Results / Deliverables

  • -75% of WIP in the Design Office in less than 8 months (-50% in 4 months).

  • +120% of productivity of the capacity constraint, the Design Office.

  • Strong improvement of the technicians' working conditions.

  •  -50% of WIP in Manufacturing.

  • -40% of manufacturing Lead Time.

  • -30% of the global Lead Time.

  • Spectacular improvement of the scheduling quality and the project monitoring.

I want the same results 

Home>Clients missions>Engineering To Order of GearBoxes in the Oil & Gas industry

About Marris Consulting

Marris Consulting is an industry consulting and training company specialized in the Theory of Constraints (ToC) and Critical Chain Project Management. We focus on improving the performance of manufacturing and process industries by using Constraints Management combined with Lean and Six Sigma. To boost project performance, we also use Critical Chain Project Management (CCPM), which we sometimes combine with Lean Engineering. Our 2-day performance audits, our performance consulting services and our project management, Lean, ToC & CCPM training by our industry consultants offer a wide range of solutions to help our clients around the world reach the highest possible levels of performance.

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