## 3 Research Design and Methodology, and Model Integration
### Blockchain-Based Business Model Proposal
to the forefront of manufacturing. Together, they form a cohesive solution that not only enhances quality control but also reduces operational bottlenecks, fostering a more reliable and robust manufacturing ecosystem. Furthermore, by integrating blockchain and smart contracts, we anticipate a substantial reduction in the overall risk of production defects, a heightened capacity for rapid issue resolution, and an enhanced ability to meet evolving regulatory requirements. These improvements, facilitated by the adoption of blockchain technology, have the potential to set a new industry standard, aligning the manufacturing of 5G ceramic antennas with the cutting-edge technological landscape of the telecommunications sector. We propose a blockchain-based business model specifically designed for 5G antenna manufacturing in Figure 4. This model leverages blockchain's inherent security and transparency to address current industry challenges, setting it apart from traditional models by ensuring data integrity and streamlining the supply chain. This figure serves as a conceptual map, articulating the workflow intricacies and demonstrating how blockchain technology can be embedded within the core of a 5G antenna production system to enhance security and efficiency. The process initiates with a \"Request manufacturing information\" step (1), where the impetus for data engagement is established. This step represents the pivotal moment when stakeholders involved in the manufacturing of 5G ceramic antennas--such as engineers, project managers, or compliance officers--seek access to proprietary manufacturing data, which are likely to encompass design specifications, material composition, and production schedules pertinent to 5G antenna production. Progressing to \"Access control\" (2), the system meticulously examines the requestor's authority to ensure the sanctity of sensitive information. This safeguard is implemented to ensure that only individuals with proper clearance can access critical data, effectively preventing intellectual property breaches and maintaining the confidentiality required in high-tech manufacturing. At the \"Verification of legal validity\" stage (3), the system conducts a thorough legal compliance check to ensure the request aligns with statutory requirements, regulatory frameworks, and the company's internal protocols. Given the competitive and proprietary nature of 5G ceramic antenna manufacturing, this step is instrumental in preventing unauthorized dissemination of trade secrets and in safeguarding against industrial espionage. Should the request not satisfy the legal criteria, a feedback loop indicates a mechanism for revision or consultation, allowing the requester to address any discrepancies or to understand the grounds for the request's rejection. Figure 4: Blockchain-based 5G ceramic antenna manufacturing information system: This diagram illustrates the flow of information and procedural steps in the manufacturing process, enhanced by blockchain technology for improved security, transparency, and traceability. The system outlines the interactions from the initial manufacturing information request to the final provision of data, ensuring that each step is validated and logged within the blockchain network for integrity and compliance purposes. Upon passing legal verification, the workflow advances to an \"Approval\" stage (4), where a designated authority within the manufacturing hierarchy authorizes the data extraction. This gatekeeping role is critical, as it introduces an accountable human element into the automated process, ensuring that the approval for data access is not just a rubber stamp but a deliberate decision. The \"Data Integrity Check & Transaction logging\" phase (5) follows, wherein the system ensures that the data are unaltered and authentic, critical for maintaining the high standards of quality and reliability necessary for 5G antenna production.