Very often, major oil and gas companies have installations and productions around the globe. However, one of the business challenges is that many assets are either having a silo or no real time data historian resulting in planning, decisions-making and analysis are done using offline data, based on chains of reporting practice. This session explains how PI System is the solution for data integration, where all real-time data are available at different layers and areas. Usage examples will be provided explaining PI System as the architecture for an integrated operation, allowing knowledge management and data capability for a collaborative work environment.