Leios Assessment Criteria for PI8

[bwbush]

Program increments of innovation streams such as Leios need clear criteria for assessing whether the approach is viable enough from a technical, business, and process perspective to continue the R&D.

The diagram below illustrates a techno-economic business case for Leios adoption that sheds light on the following questions.

1. What is the practical maximum throughput of Leios?
2. How far does that fall short of the theoretical maximum throughput?
3. How much would Leios transactions have to cost for SPOs to make a reasonable profit?
4. What is the worst-case bound for the throughput vs cost profile of Leios?
5. How does Leios compare to other blockchains?
6. Given current throughput targets, how much would Leios allow us to lower hardware requirements?
7. Given current hardware requirements, how much would Leios allow us to increase throughput?
8. What are the maximum limits Leios allows us to achieve at the maximum limits of currently available commodity hardware?

Technical goal for PI8: Estimate a reasonably tight upper bound on the cost of operating a Leios node, as a function of transaction throughput, and estimate the maximum practical throughput.

• Target level: SRL2

Business goal for PI8: Identify (a) the acceptable limit of transaction cost for Cardano stakeholders, (b) the maximum throughput required by stakeholders, and (c) the throughput-cost relationship for other major blockchains.

• Target level: IRL3

Termination criteria for Leios: Transaction costs are unacceptably high for Leios or the practical maximum throughput fails to meet stakeholder expectations. In this case the Leios protocol may need reconceptualization and redesign, or it may need to be abandoned.