Part of the policy concerning the quality of the product is the product. The quality of a product in the form of goods or services. should be determined by its dimensions. Dimensions of product quality can be described as follows. According to David Garvin quoted Vincent Gasperz, to determine the dimensions of the quality of the goods, may be through the eight dimensions as described below.
c. Reliability, matters related to the probability of successfully carrying out its function of an item each time it is used in a certain period of time and under certain conditions anyway.