The trend is happening today, many students simply follow the opinion of parents, friends. With just base this opinion and without reviewing a student’s ability to make decision that are very contrary to the interest and talents. Consequently happens after that, that is laziness learning and decreased overcome the problems of error in choosing this department takes a decision support system capable of performing calculations of value, and intereset owned by senior high school students to help determine the appropriate department. The system uses fuzzy logic used c-means (FCM) which requires some input of the average value of report cards semester and second semester, and the average value of tests of academic potential. With this approach, students are expected to be able to choose an appropriate high school majors. Key Word: Decision Support System, Election Departement, interest, algorythm, Fuzzy C-Means.
                        
                        
                        
                        
                            
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