# The Future of the Human-Machine Interface (HMI) in Society 5.0
## 5 Human-Centric Manufacturing (HCM)
### Use Cases of Human DTC  
#### 5.5.1 Collective Consensus Building  
Collective consensus building for human digital twins refers to the process of developing a shared understanding and agreement among stakeholders regarding the use, development, and management of human digital twins. It involves bringing together various groups, including researchers, developers, policymakers, and users, to collaboratively define the scope and objectives of human digital twins, establish ethical and legal guidelines, and ensure that the technology is used in a responsible and beneficial manner. Here are some of the key considerations in collective consensus building for human digital twins [63]:  
Privacy and data protection: Human digital twins rely on collecting and analyzing large amounts of personal data. It is essential to establish clear guidelines for how this data will be collected, stored, and used and ensure that users have control over their data and are informed about how it is being used;  
Ethics and social considerations: Human digital twins raise a range of ethical and social issues, including concerns around autonomy, informed consent, and potential biases in the algorithms used to develop and manage the twins. It is essential to establish ethical guidelines for the use of human digital twins and ensure that these guidelines are continuously reviewed and updated as the technology evolves;  
Interoperability and standards: Human digital twins may be developed by different organizations using different technologies and standards. It is essential to establish inter operability standards to enable different human digital twins to work together seamlessly and ensure that the technology is developed in an open and collaborative manner;  
User engagement: Human digital twins must be developed in collaboration with end users, including patients, athletes, and workers, to ensure that the technology meets their needs and is aligned with their values and preferences;  
Governance and regulation: Human digital twins may require new governance structures and regulations to ensure that they are developed and used in a responsible and transparent manner. This may involve developing new regulatory frameworks that are specific to human digital twins or adapting existing frameworks to accommodate this emerging technology.  
Thus, collective consensus building for human digital twins is critical for ensuring that this technology is developed and used in a responsible and beneficial manner. By bringing together diverse stakeholders, we can establish a shared vision for the future of human digital twins and develop guidelines and standards that promote ethical and responsible use of this emerging technology.  
* A human digital twin has a memory of personal knowledge, experience, etc., so it can think and judge while having the same personality and sense of values as the real-life person and engage in various tasks;
* A digital twin replicates communication that takes place in the real world, so it can engage in advanced tasks that require communication with multiple people;
* A typical example is consensus building during a meeting.