A simple example of applying the hierarchy to an E-Commerce marketplace, would resemble something like the following graphic

Let us break it down, the System Owner or Operator is a corporate entity which provides payment services, billing services, and various marketplace driven services to its clients. It must provide its clients with the ability to board accounts, configure pricing and services, process transactions, facilitate payments, facilitate reconciliation and potentially payout residuals.

Each Client, in this case, is a Service Provider (SaaS platform or Sales Channel) who configures and maintains their own clients, who may use their own acquirers, payout and residual models, with different billing models, all while ultimately interacting with their own unique customer base. This is what the system platform does best. Now that we have a fundamental understanding of the structure, and how it might apply to your business, let us answer your questions!