On the basis of a deep understanding of real estate, Shell has built big data and cloud computing, and launched a sensational real estate dictionary. The real estate dictionary is the database of housing information, and it is also the core asset that the chain is proud of. In addition, Shell relies on the underlying basic data of the "Real Estate Dictionary" and combines the massive interactive data generated by the deep connection of owners, customers, brokers and platforms to build and upgrade the whole life-cycle real estate verification system, which can dynamically check the real estate in real time and improve the real estate search experience and transaction efficiency of buyers and sellers.