The basic and initial under understand of quality is conformance to specifications criteria, which measures how well the product or service meets the targets and tolerances determined by its designers. For example, the dimension of a machine part may be specified by its design engineers as 3.05 inches. This would mean that the target dimension is 3 inches but the dimensions can vary between 2.95 and 3.05 inches. Similarly, the wait for hotel room service may be specified as 20 minutes, but there may be an acceptable delay of an additional 10 minutes. Also, consider the amount of light delivered by a 60 W light bulb. If the bulb delivers 50 W it does not conform to specifications criteria view quality as s function of a specific, measurable variable and those differences in quality reflect differences in quantity of some product attribute, such as in the number of stitches per inch on a shirt or in the number of cylinders in an engine, though it may not be directly related to the consumer’s idea of quality, In this view, for example, really good ice cream has high butterfat levels.