Parliament's spending watchdog has held up a successful large-scale public sector tech transformation as a rare example worth emulating, in a striking departure from the usual diet of failure and overspend. Reporting on the implementation of the Bank of England's £431 million Real-Time Gross Settlement (RTGS) system, the Public Accounts Committee said the UK central bank worked hard to deal with the "inevitable challenges that arise over the course of a major long-term digital program, overcoming many common problems that we see in public sector transformation." Instead of requiring the public bodies to learn lessons from project failures, as is customary in PAC reports, the committee this time challenged these organizations "to learn and incorporate lessons from an all too rare positive example of public sector digital transformation, to improve government's implementation of such programs." Examples of similar scale projects which have come up short — to say the least — include the Emergency Services…