It is when a particular software application or a hardware system requires continuous monitoring. Technicians take breaks and closely monitor traffic, tickets from field and possibly complicated consoles full of graphs and charts. Mostly done on a mission critical application or when a major event is happening on a otherwise unimportant application.

Also look at no eyes on glass for stopping monitoring of a critical application.

Micro marriging is when your partner manages your personal day-to-day tasks with you much like a Micro Manager at work.