Qualitative factors refer to intangible or non-measurable aspects that contribute to a certain quality, characteristic, or attribute. These are subjective and can vary from person to person based on their individual experiences, perceptions, and opinions. Examples of qualitative factors include taste, smell, texture, appearance, and emotional responses such as happiness, satisfaction, or frustration. In contrast, quantitative factors refer to measurable aspects that can be expressed numerically, such as weight, height, temperature, or time.