Global COVID-19 Immunisation Verification System:

Write around 700-1000 words and design a system that could be used to validate COVID vaccination status (e.g., at a border). Countries have many different proof of vaccination documents, in different formats. Remember this doesnt need to work, youre just describing the design but imagine the basic workflow: someone presents vaccination documents, your system then needs to check with an external system to validate the persons identity and confirm what vaccinations they have received. That information needs to be cleaned, parsed, and compared to the list of acceptable vaccines. (Ignore the complexity of that matching logic, just assume it can be done).

Your design should include:

• A discussion of which database type(s) would be most appropriate for this
• What backup/Replication strategy it would have?
• What data (fields) would be in the database?
• Any data governance/security/Ethics guidelines
• The basic design of the database (Depending on which type of database you choose)
• Estimate the size of the database for a global population of 7.8 billion people, with about 150 million births and 60 million deaths per year (current numbers).