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73their factory gates to harmonize supply chain processes. By adding sustainability to these joint workshops, companies can reduce packaging, optimize transport routes, or set common environmental standards. One manufac turer, for example, worked with suppliers to streamline packaging processes – resulting in less material, lower logistics costs, and a reduced carbon footprint.4.Performance management: Making sustainability measurable“ W h a t g e t s m e a s u r e d g e t s m a n a g e d .” O n e o f t h e g r e a t e s t challenges in sustainability is the lack of operational KPIs that can be tracked and influenced daily. Traditionally, metrics like CO₂ emissions or energy use appear only in annual reports – too late to drive continuous improvement.Lean performance management offers a solution. Shopfloor management systems create regular review cycles where teams check progress against defined KPIs, discuss deviations, and take corrective action. If sustainability indicators are integrated into these routines, they become part of daily leadership.Examples include: Monitoring energy consumption per production shift. Tracking waste separation or recycling rates in departments. Reviewing supplier sustainability scores alongside cost and quality.The key is to define influenceable indicators: numbers that teams can actively impact through their actions, rather than distant corporate-level metrics.5.Tools and methods: Extending Lean to GreenT h e L e a n t o o l b o x i s f u l l o f methods that can be directly applied to sustainability challenges: 5S: Traditionally used to improve workplace organization, it can be extended to include environmental aspects, such as checking for compressed air leaks, ensuring p ro p e r wa ste s e p a rat i o n , o r reducing unnecessary energy consumption. Problem-solving tools like the 5-Why method, Ishikawa diagrams, or A3 reports can be used to address root causes of environmental issues (e.g., excessive waste generation). FMEA (Failure Mode and Effects Analysis) helps identify potential environmental risks in processes before they occur. TPM (Total Productive Maintenance) and autonomous maintenance can integrate resource efficiency as an additional target dimension alongside OEE and equipment lifetime.The advantage is that employees are already familiar with these tools – they only need to be sensitized to apply them 專欄文章6 (原文)｜Lean as an Enabler of Sustainability