Trello is a virtual board used to visualize tasks and the work process.
For this purpose, this board is divided into five areas:
1. backlog: All tasks that relate to the project but are not worked on in this sprint.
2. TODO: All tasks that are planned for this sprint.
3. WIP: All tasks that are currently being processed.
4. review: All completed tasks need a review by another person.
5. done: If the task meets all criteria, it goes here, otherwise it goes back to the TODO with comments.