Lean production is a systematic manufacturing method aimed at eliminating waste within the manufacturing system. Waste is defined as any activity that does not add value from the customers perspective. Lean production is closely related to another concept called just-in-time manufacturing (JIT manufacturing) . The core idea of lean manufacturing is to relentlessly work on eliminating waste from the manufacturing process. According to research conducted by the Lean Enterprise Research Centre (LERC), fully 60% of production activities in a typical manufacturing operation are waste - they add no value at all for the customer. Lean manufacturing enables companies to deliver higher quality products at significantly lower costs. The methodology is based on specific manufacturing principles that have influenced production systems across the world, as well as those of other industries including healthcare, software, and various service industries. The basis of lean is often translated into five core principles: value, value stream, flow, pull, and perfection. Lean manufacturing is used across industry for a variety of production processes, although notably, it was first seen within the automotive industry.