Throughout DEVA Holding, DEVA Performance Management System, which includes evaluation, career and task planning process, is applied in order to systematically determine and improve employee performance. DEVA Holding Performance Evaluation System is a performance management system that is formed by the combination of Corporate Values and Business Goals evaluation models. Performance Management System is the reduction of company targets to employees, determination of individual targets of employees in line with company targets, monitoring of their performances, evaluation, determination of development needs and all of the processes carried out in the career planning process.