X-Matrix
Definition
The X-Matrix is the single-page planning document used in Hoshin Kanri, named for the X shape its four quadrants form. Long-range breakthrough objectives, annual objectives, improvement priorities, and target metrics each occupy one edge of the page, and correlation marks in the corners record which items in adjoining quadrants are linked.
Read clockwise from the bottom: three-to-five-year breakthroughs at the south, annual objectives at the west, improvement priorities at the north, metrics to improve at the east, with owners listed down the right-hand side. Each corner holds a grid of correlation marks, usually strong, weak, or none. Because every item must link to something in the quadrant beside it, an annual objective with no priority behind it — or a priority attached to nothing — becomes visible on the page.
The matrix is dense, and density cuts both ways. It is effective at exposing unsupported objectives inside a planning room and poor at communicating anything to someone who was not there; most people outside the leadership team never learn to read it. It is also a snapshot. The correlation marks record what was believed at the annual planning session, and updating them mid-year is awkward enough that most teams do not.
Example
A distributor links the annual objective "reduce order-to-cash to 30 days" strongly to two priorities — automate invoicing, tighten credit terms — and to two metrics: days sales outstanding 47 to 30, invoice error rate 6.2% to 1.0%.
See also: Hoshin Kanri software