Many demographic traits distinguish users. In starting a user interface design analysis, a chief task for the designer is to identify those characteristics most critical to the realization of the specific interface goals.
General traits are broad identifying variables such as age, gender, work experience, education, and culture. Consider an example of designing tax preparation software for a small business. Try to form initial impressions of some design tactics you might use. Would you use a complex one page data entry form, a tabbed interface, or a step-by-step question Wizard? Or perhaps some combination?