As we mentioned at the beginning of this chapter, that's the big idea of business networks implemented on blockchains. They make the translation from the real-world into a computer system as simple as possible. Hyperledger Fabric, in particular, makes all these ideas quite explicit, so that we can easily model and implement a business network. It keeps all the existing ideas intact, but implements them in a fundamentally digital manner—using computer processes, networks, and storage.

Transactions are at the center of a business network because they act on assets and participants. However, it's more than this. Even if we add more concepts to the business network, they must always be subject to transactions. Transactionality is the universal property that relates to all aspects of the business network. It's like the ability to fly that we mentioned earlier in the chapter—every object in the business network is subject to, and must be the subject of, transactions.