The 4D management method*** is divided into four parts: organization in place, responsibility in place, training in place, and implementation in place. The 4D system can not only be used to develop good leaders, but also a set of rigorous team building process, which can be evaluated to motivate the team performance of the key elements, namely the social environment. The social environment has always played an important role in the outcome of a project. 1D: Organize in place Definition: Determine essential and non-essential items and reduce the number of essential items to a minimum, and clear out the non-essential items. Essential items are clearly labeled with the minimum safe amount and neatly arranged, and cleaned. Purpose of organization: To free up "space" and prevent misuse. Neat, labeled, no need to waste time looking for something 30 seconds to find what you are looking for; clear the workplace of all areas of the dirty, to maintain the environment, goods, instruments, equipment in a clean state, to prevent the occurrence of contamination. 2D: Responsibility in place Responsibility in place Definition; health, equipment, service, safety, responsibility to the person system on the wall. Responsibility in place purpose: in line with the principle of whoever is responsible for whoever manages, whoever uses whoever is responsible for whoever inspects whoever is responsible for the work flow, visualize and digitize the process to give clear guidance for daily work. 3D: Training in place training in place definition: continuous, repeated and constantly adhere to the previous 2D content and approach, take a variety of forms of training for new and old employees, so that employees always keep in mind the 4D, so that they can be deep in the hearts and minds of the people. Purpose of training in place: top to bottom, old to new, backstage to front office, through training to make employees change and set up the correct ideology, to develop the habit of work standardization and seriousness. 4D: Implementation in place implementation in place definition: in the training in place on the basis of the interaction of the whole staff, with the scientific supervision system will be the 4D site standards for a long time to maintain. Execution in place purpose: to realize the site neat and tidy, neat and orderly, really play the role of 4D site management, so that employees develop the habit of adherence.