WOS (Weichai Operation System) is a Weichai-style management philosophy tailored for large-scale equipment manufacturing enterprises to achieve high-speed and high-quality development. By summarizing and abstracting the concepts, tools and methodologies demonstrated by Weichai in the management of various business domains, the business can be quantified and evaluated, promoting a continuously optimized operation and management model. Through its unique methodologies, WOS assists customers and enterprises across the industrial chain in establishing customized operation and management systems grounded in practical needs, thereby enhancing operational efficiency and strengthening core competitiveness.