How can Open Banking IDs be used as part of a federated identity service?

Third Parties can capture a successful banking app logon to decrease the risk-core on a related user journey by ensuring that the individual in the journey has access to (ownership is trickier to prove) the bank account that relates to the second journey. A good example might be a benefits solution that ensures that an individual completing a claim has access to a bank account that is held in the name of the benefit claimant.