If you have worked with any kind of agile methodology before, you have likely run across the Kanban board.
The following figure shows a basic example of a Kanban board:
How do we deal with testing and bug reports on the board?
To the left are the user stories that the team has committed to this sprint. The Post-it notes are the user stories broken down into tasks. The columns are the statuses that these tasks are in. When the sprint starts, all the Post-it notes are in the left column, and when the sprint ends, they have all moved to the right.
Testing should be treated just as any other development task, by having a Post-it note for ...