Home Page Research Services Online Surveys Customer Satisfaction Employee Satisfaction Custom Research Small Bus. These both provide some of the same information, but a questionnaire has several advantages.
Questionnaires seek explicit information which can be analyzed and trended over time.
This allows the business owner to know with a degree of certainty the extent to which business changes have impacted customer satisfaction. Comment cards only provide broad opinions, which often are very valid, but which cannot be used to trend changes in customer opinion.