The Fuzzy DEA-Based Manufacturing Service Efficiency Evaluation and Ranking Approach for a Parallel Two-Stage Structure of a Complex Product System on the Example of Solid Waste Recycling

Accurate production efficiency evaluation can assist enterprises in adjusting strategies, improving efficiency, and, thereby, weakening environmental impacts. However, the current studies on do not accurately consider interactions inside system parallel processes. Based concept of manufacturing service, this paper describes process a complex product (CoPS) with service chain. An calculation model based triangular intuitionistic fuzzy number–solid waste recycling–super-efficiency data envelopment analysis (TIFN-SWR-SDEA) is proposed under consideration internal structure example solid recycling. Additionally, technique for order preference by similarity to ideal solution (TOPSIS) method and entropy weight were combined determine proportion recycling, an improved index rank (PIR) was employed interval results. Finally, effectiveness superiority verified comparative analysis. The results show that overall CoPS be using green technology, increasing recycling renewable resources, clean energy, utilization rate materials process.