Terminal layer, make full use of Internet of things technology and mobile applications to improve on-site management and control capabilities. Through RFID, sensors, cameras, mobile phones and other terminal equipment, realize real-time monitoring, intelligent perception and data collection coordination of the project construction process, and improve the management ability of the operation site.

Platform layer. How to improve the processing efficiency of the large model and big data generated by the complex business processed in each system? This has a huge demand for the server to provide high-performance computing power and low-cost massive data storage capacity. Computing, storage and service provision through cloud platform. Make it easier for all parties involved in the project to access data and work together, making the construction process more intensive and flexible.

Application layer, the core content of the application layer should always focus on the key business of improving engineering project management. Therefore, PM project management system is one of the key systems of site management. The visualization, parameterization and data characteristics of BIM make the management and delivery of construction projects more lean. It is an effective means to realize lean management on the project site.

Bim and PM systems provide a large amount of data information for deep processing and reuse for project production and management. They are information generators. How to effectively manage and utilize these massive information and big data needs the support of DM data management system to give full play to the value of data. Therefore, the application layer is based on the close combination of PM, Bim and DM to support each other and realize the intelligent management of the construction site.

Smart engineering embeds more high-tech technologies such as artificial intelligence, sensing technology and virtual reality into various objects such as buildings, machinery, personnel wearing facilities, site entrances and exits, and is generally interconnected to form the "Internet of things", and then integrated with the "Internet" to realize the integration of project management stakeholders and project construction site. The core of smart engineering is to improve the way of interaction between stakeholders and post personnel in the project in a "smarter" method, so as to improve the clarity, efficiency, flexibility and response speed of interaction.