| The equivalence between internal company data (complaint, claim, and company envision) with customer survey is still questionable nowadays, and there is still a big doubt whether the internal company data does reflect the customer needs, even some of them find out their customer needs through customer surveys. This research aims to reveal the equivalence between those data, with the internal company data is expected to be able to replace surveys, because it consumes time and big costs. To test the equality of two such data, researchers gave percentage (proportion) to each of data collected. After being classified according to Kano model, the proportion of the company's internal data and the results of customer surveys performed statistical tests, using test the hypothesis to the proportions of the two samples as a test form equivalence. Based on results of test of equality, it is noted that the company's internal data complaint is equivalent to must be attributes, and internal data company envision is equivalent to attractive attributes. Meanwhile for data internal company claims is unequal to category one dimensional atributes. Researcher suggest PT. Bank X to optimize internal data the companies already owned while minimize the technique survey, advance research of QFD Knowledged Based, based on internal company data is also suggested. |