Obeya in Japanese means simply “big room.” At Toyota it has become a major project-management tool, used especially in product development, to enhance effective and timely communication. Similar in concept to traditional “war rooms,” an obeya will contain highly visual charts and graphs depicting program timing, milestones and progress to date, and countermeasures to existing timing or technical problems. Project leaders will have desks in the obeya as will others at appropriate points in the program timing. The purpose is to ensure project success and shorten the PDCA cycle.