A DNA-Like blockchain model: implementing decentralized management, dynamic scheme adjustment, and data security for optimal service composition

Abstract

ABSTRACT Cloud manufacturing (CM) promotes the development of small and medium-sized manufacturing enterprises (SMMEs) by integrating resources and collaboratively providing users with diversified services. However, the implementation of CM for SMMEs faces several challenges, such as the excessive centralization of enterprise management, poor dynamic adaptability of service composition, and insecurity of data information. To address these issues, this paper proposes a DNA-like blockchain model (DNABM) based on blockchain technology. The DNABM consists of a service information chain (SIC) and a manufacturing process chain (MPC). The SIC nodes (SIblocks) are formed based on the corresponding subtasks to record information about all manufacturing services that can complete the subtasks. The MPC nodes (MPblocks) are formed by selecting the most suitable services from the SIblocks. The DNABM has advantages of flexible service management, dynamically adaptable service compositions, and securely managed manufacturing enterprise data across various levels. Finally, taking the foundry industry as an example, demonstrating how the DNABM can promote the collaboration of SMMEs in CM. However, the actual implementation of the DNABM is still limited by the large number of heterogeneous tasks and services, the low utilization rate of process data, and the lack of coordination compatibility between services.