The focus on scalability and economic viability of the blockchain solution is an important one as it addresses the longevity of the solution. We have already alluded to the fact that business design is reliant on cost predictability of transaction processing as it is a cost component and a factor in the overall value of services provided on the network. Besides, for any system, especially a transaction system, to be ubiquitous and be adopted at global scale, speed and costs are two factors that simply cannot be ignored.

The inverse relationship between the compute costs due to security protocols (including encryption, cryptography, key management, and so on) and its impact on scalability (addressing speed and costs is an interesting paradox that presents an interesting challenge to us as practitioners), we have employed various techniques ranging from hardware centric approaches (colocation, specialize ASIC processors, crypto accelerator cards, hardware security modules, and so on) to software design-based decisions such as a block data, channels, connection optimization, and so on. While we have attempted to address some of these design principles and resulting choices, we believe that every business network will have unique business requirements and integration challenges requiring professionals such as yourself to put on your thinking hat and apply what we have learned from not only foundational and fundamental principles, but also from the options available and given to us by the platform. This includes the framework and tooling we have discussed in the book.