I think a good resource to give you an idea of what blockchain can actually do comes from the "Blockchain use cases " and "Blockchain solutions" sections of IBM's Blockchain marketing page: https://www.ibm.com/blockchain This gives you an idea of some real world business problems that have been solved with the technology. Still, personally, I find the question of "when do I decide to consider using a blockchain as an…
1. If you need to share all the data and the data distribution methods across multiple legal entities — there's no one 'owner' of the data like a company. If you are doing a blockchain implementation for an internal project... why? Why are you not just using a regular database like Postgres or MongoDB or Oracle or ScyllaDB? But if you are going to be sharing all this data across 50-100 companies, and no one themselve…
This basically means most of the examples in IBMs marketing (supply chain management, vaccine rollouts etc) don’t actually make any sense to do on blockchain vs using a regular database.