The P&ID is the birth certificate and life cycle document of process plant. In plant construction projects, there are different task areas and roles with different information needs. The P&ID is the master document and the basis for a common understanding of the plant. The metadata of the P&ID can be provided for basic and detailed engineering or the installer in lists, data sheets or complete manuals. The P&ID communicates functional relationships of process plant concepts to the customer and is already used in sales. Complex plant projects are very communication-intensive. The P&ID is the communication basis between the trades of process engineering, automation, 3D planning and electrical planning. The visual representation of the plant concept conveys the technical and functional relationships to all project participants at a glance. Integrated data graphics such as traffic lights, diagrams or colors provide a quick overview of the changes, order or commissioning status of the plant. The Piping and Instrumentation Diagram (P&ID) is the birth certificate and life cycle document of a process plant and is subject to most changes. The P&ID accompanies the plant from initial design through commissioning, operation and maintenance.