Topics
One Toyota Production System subject, covered in depth — explained in clear, self-contained points, each one traced to its source. Need a quick definition of a single term instead? See the TPS Encyclopedia.
Chief Engineer (Shusa)
主査Toyota's system of giving one senior engineer total accountability for an entire vehicle program — concept, quality, cost, and market success — while deliberately withholding line authority over the functional engineers who do the work. The chief engineer integrates the whole vehicle through technical depth, drawing sign-off, and persuasion rather than rank.
Heijunka
平準化Heijunka is the leveling of production volume and product mix over a fixed period so that mura is removed and the rest of the Toyota Production System can function.
Hoshin Kanri
方針管理Toyota's strategic management system that aligns an organization around a vital few breakthrough objectives through PDCA, two-way catchball dialogue, and operational audits.
Jidoka
自働化One of the two pillars of the Toyota Production System: equipment and people detect abnormalities, stop or signal immediately, prevent defects from continuing, and trigger human response and improvement.
Kaizen
改善What kaizen actually is at Toyota — daily improvement by every person, working from a standard, not a week-long event or a cost-cutting drive. Where it came from, how it really works, and how good ideas spread across the company.
Kanban and the Pull System
かんばん / プル方式Kanban (かんばん) and the pull system explained plainly — what a kanban is, how the production and withdrawal cards run a supermarket loop, where the method came from at Toyota, and why pull exposes instability rather than fixing it.
Standardized Work
標準作業Toyota standardized work — the three-element production method built from takt time, work sequence, and standard work-in-process, the forms that document it, and how it differs from a generic SOP.
Takt Time
タクトタイムThe demand pace expressed as a time interval — available production time divided by customer demand — around which a process is designed, staffed, and synchronized.
The Seven Wastes
七つのムダTaiichi Ohno's seven wastes, explained plainly — what each waste is, why overproduction is the root of all the others, where the idea came from, and how Toyota removes each one.