چكيده به لاتين
In today's organizations, product-oriented approach has been replaced by customer-oriented approach. Customer satisfaction is closely related to customer service. Customer service means providing services to customers before, during and after the delivery and sale of the product to them. After sales services include the provision of services, support and spare parts after the sale. Saipa Yadak Company was established in 1370 to supply spare parts and provide after-sale services to Saipa's manufacturing vehicles and attracting customer satisfaction. The goals of Saipa Yadak Corporation are to reduce vehicle warranty costs and increase customer satisfaction, improve after-sales service, increase the quality of parts, design and manufacturing operations
Nowadays, regarding the massive amount of data stored in organization’s database as well as the substantial growth in their volume, we need to find a method for analyzing and discovering the hidden patterns of these data. For this purpose, Data mining, which means exploring through the massive amount of data, has been recognized as one of the most promising and developing technologies. In this research, we use datamining techniques in order to analyze the data related to warranty services of Saipa yadak Co., which has been supporting the after sales of Saipa Automobile Company. The data has been collected from 94/1/1 to 96/6/1. To prepare and analyze these data, Crisp algorithm, Excel software, STATGRAPHICS (a statistical software), and Python programming language has been used. In addition, FP-GROWTH algorithm has been used for discovering the dependency rules, decision tree for categorizing, and time series for recognizing and predicting the number of pieces.