Internet of things (5+7+N) strategy

What is the meaning of 5+7+N strategy in smart homes of the internet of things.

In the system, 5 represents the living scenarios of a smart living room, smart kitchen, smart bathroom,smart balcony and smart bedroom;

7 represents whole-house solutions for air, water, clothes care,
security, voice control, health and information; and

N is the variable that allows users to customize the smart home experience to best suit their needs