OO spaces helps to answer questions that relate to how people interact with an environment. Think for example of these questions: 

How does kitchen design affect sustainable living?

How can an environment stimulate wellbeing?

What would make my house feel more like home? (click to go to the survey)

What makes an environment interesting?

How do people understand a new building design? (e.g. find your way, know what you are allowed to do where)

How can neighbourhood design promote sustainable behaviours? (e.g. sort trash, choose eco-friendly modes of transport, reduce energy/water usage)