Definition of "set-up"

Stevenage's first-half performance forced a change of formation from Newcastle at the break, as they brought on Nile Ranger for Leon Best and switched to a 4-2-3-1 set-up.

2011 January 8, Paul Fletcher, “Stevenage 3 - 1 Newcastle”, in BBC

A “moving platform” scheme […] is more technologically ambitious than maglev trains even though it relies on conventional rails. Local trains would use side-by-side rails to roll alongside intercity trains and allow passengers to switch trains by stepping through docking bays. This set-up solves several problems […].

2013 June 1, “Ideas coming down the track”, in The Economist, volume 407, number 8838, page 13 (Technology Quarterly)