When is a blockchain required
Go through simple set of questions —
Questions
1. Is high data throughput required?
Yes — Use a traditional database.
No — A central database might still be useful if other requirements are met. For example, if users trust each other, then perhaps there is no need for a blockchain. However, if they don’t or trust cannot be established for any reason, blockchain can be helpful.
2. Are updates centrally controlled?
Yes — Use a traditional database.
No — You may investigate how a public/private blockchain can help.
3. Do users trust each other?
Yes — Use a traditional database.
No — Use a public blockchain.
4. Are users anonymous?
Yes — Use a public blockchain.
No — Use a private blockchain.
5. Is consensus required to be maintained within a consortium?
Yes — Use a private blockchain.
No — Use a public blockchain.
6. Is strict data immutability required?
Yes — Use a blockchain.
No — Use a central/traditional database.
Reference book: https://www.packtpub.com/product/mastering-blockchain-third-edition/9781839213199
