# NFT Technology for Enhanced Global Digital Registers: A Novel Approach to Tokenization
## 5 System Functionality and Component Interaction
### User Interaction
This modular and extensible design facilitates seamless integration with various external services and blockchain networks, enabling efficient communication and data sharing between the system components and the broader ecosystem of global digital registers. Below is a UML use case diagram that illustrates the main use cases and actors involved in the NFT-based tokenization system for global digital registers. The accompanying explanations and comments provide additional context for understanding the diagram (Figure 2). The main actors and their use cases are as follows:  
* User: This represents an individual who interacts with the NFT-based tokenization system. Their use cases include the following:
* Authenticate: Log in to the system using their credentials;
* Authorize: Grant or revoke access to specific system functions based on their role and permissions;
* Create NFT: Register a new digital resource and create a corresponding NFT;
* Transfer NFT: Transfer the ownership of an NFT to another user;
* View NFT: Access and view the details of an NFT, such as its metadata and ownership history;
* Verify Tokenization: Check and confirm the validity and uniqueness of the tokenization process for a digital resource;
* Manage Fractional NFT Ownership: Participate in partial ownership of NFTs, including buying, selling, and managing fractional shares;
* Verify Confidential Data: Validate sensitive information related to NFTs using privacy-preserving techniques such as zero-knowledge proofs;
* Configure Privacy Settings: Adjust personal data sharing preferences and visibility options for owned NFTs. * Administrator: This represents a system administrator responsible for managing and monitoring the NFT-based tokenization system. Their use cases include:
* Manage Users: Add, remove, or modify user accounts and their access permissions;
Manage Digital Register: Add, remove, or modify digital resources within the global digital register;
* Monitor System Performance: Track the performance and stability of the system, addressing any issues that arise;
* Configure Privacy Settings: Define and implement system-wide privacy policies and data protection measures. The use case diagram provides a comprehensive overview of the system's functionality from the perspective of its actors. It illustrates the primary actions that each actor can perform and highlights the advanced capabilities of the NFT-based tokenization system for global digital registers. The inclusion of new use cases such as \"Manage Fractional NFT Ownership\" and \"Verify Confidential Data\" demonstrates the system's ability to handle complex ownership structures and maintain data privacy, addressing key requirements for a robust and versatile global digital registry system. Below is a UML state diagram that illustrates the main states and transitions involved in the NFT-based tokenization system for global digital registers (Figure 3). The accompanying explanations and comments provide additional context for understanding the diagram. Figure 2: UML use case diagram for the NFT-based tokenization system for global digital registers. The main states and transitions are as follows:  
1. Unauthenticated--The initial state of the system when a user has not yet logged in. Transition: Authenticate--The user provides their credentials and logs in to the system;
2. Authenticated--The user has successfully logged in and can access the system's features. Transition: Logout--The user logs out of the system and returns to the unauthenticated state;
3. Idle--The default state within a authenticated state, where the user is not currently performing any specific action;
4. NFT_Creation--The user initiates the process of creating a new NFT for a digital resource. Transition: NFT Created--The system successfully creates the NFT and updates the global digital register;
5. NFT_Created--The system confirms that the NFT has been successfully created. 6. NFT_Transfer--The user initiates the process of transferring the ownership of an NFT to another user.