Before customizing your gap analysis for customer satisfaction, you need to segment your customers into meaningful and relevant groups. There are various ways to do this, depending on your goals, data, and resources. Common criteria for segmentation include demographic factors such as age, gender, income, education, and location; behavioral attributes like purchase history, usage frequency, loyalty, and feedback; psychographic elements like values, attitudes, interests, personality, and lifestyle; and needs-based considerations such as problems, goals, motivations, and expectations. You can use one or more of these criteria to create segments that reflect the diversity of your customer base. Additionally, surveys, interviews, focus groups, analytics tools or CRM systems can be used to collect and analyze data on your segments.