So that the interviewees are clear of their behavior and aware of how to make abstract, vague concepts concrete, they must first do some homework, including scoring the product they would like to buy, recording their living environment, and keeping a video or audio journal. Through such a questionnaire, it is easier to dig deeply into their values, likes and daily activities.
為了讓受訪者清楚自己的行為，意識到如何將抽象、模糊的理念具象化，受訪者要先做些功課，譬如為自己想購買的產品做記號、拍攝下自己的生活環境、以影像或聲音「寫」日記；接著一份問卷將深入詢問他們的價值觀、喜好與日常活動。