The UK's Approach to IT

I've posted before, but not recently, about the differences between British and American governmental use of IT.  Briefly, as would be implied by the UK's civil service setup, the Brits are much more uniform, much more top down, while the US is (excessively) fragmented and siloed, much more bottom up.

Here's the website of the Government Digital Service:

• Going on the road to spread the gospel "we're here to help" to the field and "local authorities" (i.e., no states here)
• They have a Service Toolkit.
• Something called "roadmaps" (i.e.high level graphic representations of IT systems?)
• Clear writing training.