1) Tony Harrop and Jeremy Vickers presented on building a high-volume, low-latency transaction processing platform called LiquidityHub to automate interest rate swaps. 2) Key challenges included maintaining sub-100ms latency, reliability of no lost transactions, and integrating with dealers and distributors while achieving 99.99% availability. 3) Detica helped implement the solution using an event-driven architecture with technologies like Fiorano and WebLogic Real Time to meet performance targets and scale to over 25,000 messages per second.