Service Recommendation based on Smart Contract and DIKW

With the development of Internet technology, the number of Web services is growing rapidly, and various types of service recommendation systems emerge in a rapid stream. Although all major service recommendation systems show efficient data processing and service recommendation performance, most of the existing service recommendation systems are developed based on a centralized platform, with functions and data concentrated on a central server. There are still many problems with this over-centralized authority, such as data tamper, data leakage and so on. In response to the above problems, we designed and implemented a service recommendation system based on smart contracts and DIKW (Data, Information, Knowledge and Wisdom). The system data is stored in the blockchain, which effectively prevents data from being tampered. At the same time, the operating environment of the system is the decentralized environment of the Ethereum alliance chain, which overcomes the centralization drawbacks of the traditional service recommendation system and provides a new solution to the existing problems in the service recommendation domain.