The so-called perfection is to provide customers with perfect value through the perfect value creation process (including design and manufacturing and support for the whole life cycle of products or services), which requires enterprises to constantly use the value stream analysis method to find out more hidden waste and make further improvements.

Lean production mode depends on five basic principles: determining value, value flow, value flow, demand pull and perfection. Lean enterprise is an enterprise that applies lean management to all levels of the enterprise, can effectively eliminate waste from the management system, strive for continuous improvement from the culture, and realize excellent business performance and strong sustainable competitiveness.