Agile methodology calls it “Limiting Work in Progress” (LWIP), or it could be called “Doing one thing at a time”, but whatever you call it, the concept is that if you’re too scattered, doing too many things at once, stress increases and productivity goes down.
The Harvard Business Review has an article with some tips on how to stay focussed, because “because when you switch away from a primary task to do something else, you’re increasing the time it takes to finish that task by an average of 25 per cent”.
The article has tips for managers, which includes “Stop demanding or expecting instant responsiveness at every moment of the day. It forces your people into reactive mode, fractures their attention, and makes it difficult for them to sustain attention on their priorities.”
The summary is “When you’re engaged at work, fully engage, for defined periods of time. When you’re renewing, truly renew.”
Read the article for more ideas.