The importance of ultra-low-latency network infrastructure for financial trading

This is a talk for the BCS Financial Services Specialist Group as introduction to a seminar on Latency.  "Latency" is the time taken for changes to data in an automated system to reach the "user" (which might be another computer). Technology solutions to managing latency can be seen as part of "good IT governance", and have to deliver compliance with internal policies for "acceptable latency".

However, failing to implement good governance in this area isn't about failing to check a box or meet some industry good practice standard or even about the possibility of annoying some regulators. It's about having increasingly unhappy customers and perhaps being unable to implement an innovative channel to market that could deliver more customers and higher profits.

There will always be some latency -  every network node a message passes through imposes some delay, on top of that associated with the finite speed of light. 

Part of the function of IT governance is to give the business confidence that its latency issues are managed so as to support its business strategies and vision, at the business level.

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