The document describes a cause-effect diagram, also known as a fishbone diagram or Ishikawa diagram. It was created by Kaoru Ishikawa in 1960 as a visual tool to identify and structure potential causes for a particular problem or effect. The diagram presented is a cause-effect diagram for the problem of "Late arrival of students." The major causes identified are: 1) Getting up late due to sleeping patterns or lack of waking, 2) Delays caused by transportation issues, 3) Machine or material malfunctions, 4) Wasting time on trivial matters, and 5) Clashing schedules. Potential solutions are provided for each cause.