A storyboard is a graphic organizer that provides the viewer with a high-level view of a project.
In Agile software development, a storyboard can help developers quickly get a sense of what work still needs to be completed. As long as the team keeps the storyboard up to date, anyone can see what work has been completed, who's working on what and what work is left to do. This not only provides the product owner with transparency, it also helps the team to visualize the sequence and interconnectedness of user stories. Storyboards can be physical or digital.
Storyboards originated in the motion picture industry to help directors and cinematographers visual a film's scenes in sequence. Such storyboards resemble cartoon strips. In Agile development, however, a storyboard looks less like a cartoon panel and more like a series of columns filled with colored squares of paper. Typically, the columns are laid out on large format paper, a whiteboard or a bulletin board. Each column represents a status and user stories are dragged to a new column when the status of the user story changes.
In Scrum software development, the storyboard may be called a task board.