This research work makes an assessment on data management related problems in Ethiopian textile and Garment industries in order to develop an applicable product data management model and develop the system so that the overall performance of the sector can be improved focused based on the case study company. A brief introduction is given on the fundamental concepts of product data management (PDM) with reference to recent literature in the area so as to help readers follow the model developed. The case company is Bahir Dar Textile Share Company (BDTSC) to undertake this research, a sample size to the case company in the case of system study is covering all sections and process was taken. Moreover, the selected garment industries produce different ranges of garment products in the country. Primary and secondary data were collected and analysed to identify data management related problems of the case-company using a well-structured questionnaire, interviews, personal observations and review of previous research works. The research investigation covers all process flow of the company. Then a PDM model is developed along with primary steps to implement the model to attain the goal. The proposed PDM system is designed and developed by using HTML, CSS, PHP,MySQL, and javacomputer programing languages. Finally, a number of recommendations and sample trail in one section some data are tried on for the case-company and conclusion drown. The proposed PDM system has a significant potential to improve the company data management system. This paper can be used as a lead for future research works related to the issue in the field.