[EN] A team of professors at Escola Tècnica Superior d'Enginyeria Informàtica (ETSINF) has developed a desktop application named ASys that is able to design customized templates to automatically assess exercises and exams in the Java programming language. However, the design of these templates is expensive, not very intuitive, and it lacks a graphical interface that simplifies the process. The main motivation of this project is to provide a tool that facilitates the design of these templates by the user, so a simplification of the process and a significant reduction in development times can be achieved. To that end, the requirements are specified, an analysis of the problem is developed, the solution is designed, and the application is finally implemented. The developed application uses a usable and intuitive interface and is independent of the current application, allowing it to be used by other similar applications. On this project, the competences are developed in the field of software design. Concretely, with the objective of developing a desktop application, different languages and technologies are used for the design and development of Java code exercise correction templates. TFGM