An information radiator, also known as a Big Visible Chart (BVC), is a large graphical representation of project information kept plainly in sight within an agile development team’s shared workspace.
The term is generic rather than specific: information radiators can include most types of charts used in agile development. Burn down charts, task boards, planning boards and storyboards are among the possibilities. An information radiator is usually hand-drawn or printed but can also include computer-generated charts and electronic displays.
The purpose of information radiators is to help keep the team focused on what really needs their attention and to promote transparency.
Alistair introduced the term “information radiator” in his 2001 book, Agile Software Development. Martin Fowler is said to have coined the term “Big Visible Chart.”
See a video about the use of Big Visible Charts: