Table 4.

The methodical process for finding and selecting relevant papers.

No.	Approach
1	Define the subject area Impact of industry 4.0 on net zero supply chain performance
2	Keyword search string oKeyword search term {"industry 4.0″ OR (“internet of things” OR IoT) OR (“artificial intelligence” or AI) OR “big data” OR “Cyber-Physical Systems” OR “business intelligence” OR “cloud computing” OR “smart factory” OR “virtual reality” OR “green technology*" OR “technology*"} AND {"e-logistics” OR “digital supply chain” OR “logistics 4.0″ OR “supply-chain*" OR “supply chain*"} AND {"net zero*" OR “net-zero*" OR “decarbonize*" OR “net zero emission*" OR “net zero economy*"}
3	Search Databases oSCOPUS, Web of Science and EBSCO.
4	Primary Criteria oInclusionary: Peer-reviewed, Journal articles, published in English, articles should be published in journals devoted to NZSC and I4.0 technologies OR in ABDC/ABS ranking. oPeriod: 2013–2023. oExclusionary: Proceedings/conference papers, Working papers, Industry/Company reports, Editorials, Market reports and News reports.
5	Secondary Criteria oInclusionary: Articles discussing I4.0 technology issues that are entirely or partially related to NZSC that are pertinent to the research goal oExclusionary: Irrelevant research objectives, Not I4.0 in NZSC-related