Hello, I worked on data set preparation, editing and visualization for 6 years at the call center with the largest business volume in Turkey. Analyzing the data generated every 15 minutes by customer calls, determining the kpi data to be used, analyzing the data with pl/sql and ibm spss, creating visualizations with power bi, analyzing dax formulas and kpi data according to needs, creating executive follow-up reports, operations I took part in the creation of report and alarm screens where they can improve themselves. I also performed similar analysis and visuals using Excel. As a freelancer, I continue to take part in similar projects.