# NFT Technology for Enhanced Global Digital Registers: A Novel Approach to Tokenization
## 5 System Functionality and Component Interaction
### User Interaction  
User interfaces, such as web-based and mobile applications, provide an accessible and intuitive means for users to interact with the system. These interfaces allow users to create, view, and transfer NFTs, as well as manage and verify the tokenization of digital resources. By providing a user-friendly experience, the system encourages widespread adoption and usage, fostering a more inclusive and accessible global digital ecosystem. The proposed NFT-based tokenization system for global digital registers employs a combination of blockchain technology, smart contracts, NFTs, data exchange protocols, and user interfaces to facilitate a secure, transparent, and efficient process for managing valuable digital resources. The system's modular design and seamless integration with external services ensure its adaptability to various use cases and stakeholders, paving the way for a revolutionary approach to the identification, preservation, and accessibility of digital assets in global registers. Below is a UML component diagram that illustrates the main components and relationships within the proposed NFT-based tokenization system for global digital registers (Figure 1). The accompanying explanations and comments provide additional context for understanding the diagram. The main components and their relationships are as follows:  
1. User Interface (UI): This represents the web or mobile application through which users interact with the system. Users can create, view, and transfer NFTs, as well as manage and verify the tokenization of digital resources;
2. API Gateway (API): Acts as an intermediary between the user interface and the backend components. It handles incoming requests from users and returns the appropriate responses. Additionally, it verifies user access using Identity and Access Management (IAM) and queues incoming requests using Simple Queue Service (SQS);
3. Smart Contract (SC): Encapsulates the logic for creating, managing, and transferring NFTs within the system. The API Gateway invokes smart contract functions to perform actions related to NFTs, and the smart contract returns the results;  
Figure 1: UML component diagram of the NFT-based tokenization system for global digital registers. * 4 Blockchain Network (BC): Provides a decentralized and secure platform for recording NFT transactions and maintaining a tamper-proof history of ownership. The smart contract interacts with the blockchain network to manage NFTs;
* 5 Decentralized Storage (DS): Stores metadata associated with digital resources in a decentralized and secure manner. The smart contract interacts with Decentralized Storage to store and retrieve metadata;
* 6 Privacy Module (PM): Implements privacy-preserving techniques such as zero-knowledge proofs to enhance data protection and confidentiality within the system;
* 7 Oracle Network (ON): Facilitates the integration of external data sources, enabling smart contracts to access off-chain information securely and reliably;
* 8 Cross-Chain Bridge (CCB): Enables interoperability between different blockchain networks, allowing for the exchange of assets and data across various platforms. Additionally, there are auxiliary services used within the system:
* 1 Identity and Access Management (IAM): Handles user authentication and authorization, ensuring that only authorized users can interact with the system;
* 2 Simple Queue Service (SQS): Queues incoming requests from the API Gateway to manage and distribute the workload efficiently;
* 3 DynamoDB: A NoSQL database used to store and retrieve data related to the system's operations, such as user information and NFT metadata. The diagram provides a comprehensive overview of the system's architecture, illustrating the primary components and their interactions. The inclusion of the Privacy Module, Oracle Network, and Cross-Chain Bridge addresses key concerns related to data protection, external data integration, and interoperability.