Japanese problem solving system is sometimes abbreviated as Ho (hokoku, or Report), Ren (renraku, or Contact) and So (soudan, or Consult). This system says that when a problem occurs, workers should Report the issue, and not keep it to themselves. They should Contact the relevant people, the foreman or the Japanese coordinator in this case. Instead of assuming that they can fix it themselves, they should Consult with others to get their advice.