The canonical glossary of the Stormholt 5D method. Each term is defined as Stormholt uses it in engagements, workshops, and writing.
The 5D method is the Stormholt continuous improvement operating system, composed of five sequenced phases: Define, Diagnose, Design, Deploy, and Develop. According to the Stormholt 5D method, every engagement moves from a scoped problem to an installed behaviour change that compounds over time. The method is a closed loop. The final phase feeds the next problem rather than ending the work.
Related: stormholt.org/5d · What is the 5D method?
An A3 report is a single-page problem-solving artefact containing eight boxes: theme, background, current condition, target condition, root cause, countermeasures, implementation plan, and follow-up. According to the Stormholt 5D method, one A3 equals one problem equals one owner, and the A3 remains live only if it is updated every review cycle. An A3 that is not updated is a historical document, not a problem-solving tool.
Related: The A3 template, explained
A value stream map (VSM) is a left-to-right drawing of every step a product or service passes through from supplier to customer, annotated with process time, wait time, inventory, and information flow. According to the Stormholt 5D method, the purpose of a VSM is to expose wait time, not to catalogue process steps. Wait time is where the money is. Process time is where most attention is wasted.
Related: The Stormholt VSM protocol
A SIPOC is a one-page scope document with five columns: Suppliers, Inputs, Process (five to seven steps), Outputs, and Customers. According to the Stormholt 5D method, if the room cannot SIPOC a process on a single sheet in forty-five minutes, the scope is too broad and must be cut. SIPOC is the label on the container, not a process map.
Related: SIPOC: scope on a page
A Gemba walk is the practice of physically observing the work where it happens, talking to the people who do it, and collecting verbatim quotes rather than summaries. According to the Stormholt 5D method, a Gemba walk is conducted without proposing solutions during the walk; the output is five to ten specific observations, not fifty generic impressions. A Gemba without operator voice is a tour. Stormholt does not do tours.
Related: How to run a Gemba walk
DOWNTIME is the Stormholt eight-waste framework: Defects, Overproduction, Waiting, Non-utilised talent, Transport, Inventory, Motion, and Extra processing. According to the Stormholt 5D method, DOWNTIME is preferred over TIMWOOD because it places Defects first — the waste business leaders recognise most readily. The framework applies to knowledge work and service operations, not only to manufacturing.
A Fishbone diagram is a divergent root-cause analysis tool that arranges possible causes into four to six categories, most commonly Machine, Method, Material, Measurement, Mother Nature, and Manpower. According to the Stormholt 5D method, the Fishbone is a brainstorm tool, not a judgement tool; its output is a set of probable causes that feed the 5 Whys analysis. If every cause fits under "People", the Fishbone is wrong.
Related: Fishbone: the 6 Ms in practice
The 5 Whys is a root-cause analysis technique in which the question "why?" is asked successively, each answer becoming the subject of the next question. According to the Stormholt 5D method, the 5 Whys is applied after Fishbone has identified the most probable cause, not before. Each "why" must be an observable fact. The analysis stops when it hits a system-level cause, never when it reaches a person-level cause.
A Pareto chart is a bar chart of defect counts by category, ordered from largest to smallest, with a cumulative-percentage line. According to the Stormholt 5D method, Pareto is a focus tool: countermeasures target the bars to the left of the 80 per cent line, and the remainder are not addressed in the current cycle. If the top three causes explain less than 60 per cent of the defects, the data has been cut too coarsely.
Related: The Pareto focus rule
A countermeasure matrix is a two-by-two grid with Impact on one axis and Effort on the other, used to triage proposed countermeasures into four quadrants: Do Now, Plan For, Quick Wins, and Drop. According to the Stormholt 5D method, the matrix is filled in public, in the room, with every proposed countermeasure placed in exactly one quadrant. Start from Do Now. Work clockwise. Never split a countermeasure across two quadrants.
Related: The 2×2 countermeasure matrix
PDCA is the Plan-Do-Check-Act improvement cycle: plan a hypothesis and expected result, run a timeboxed experiment, compare actual to expected, and standardise or revert. According to the Stormholt 5D method, the first Do cycle is never wider than one team and ten business days. If the first cycle takes longer than ten business days, the experiment was not scoped as a PDCA; it was scoped as a project.
Related: PDCA in 10 days: the Stormholt rule
A KPI Tree is a three-level hierarchy of key performance indicators: Level 1 strategic, Level 2 functional, Level 3 team. According to the Stormholt 5D method, every Level 3 KPI is tagged as either lead or lag, and every MustWin requires at least two leading indicators for every lagging indicator. Without leads, the KPI Tree only reports history.
Related: The KPI Tree in three levels
The cadence stack is a three-tier meeting rhythm composed of a daily huddle (ten minutes, standing, team only), a weekly review (forty-five minutes, seated, team plus leader), and a monthly business review (ninety minutes, seated, cross-function). According to the Stormholt 5D method, the cadence stack is the terminal deliverable of any engagement; every engagement closes with a cadence, not a report. Cancelling a cadence is an escalation event, not a scheduling problem.
Related: The Stormholt cadence stack
SQDCP is the five-category visual management structure used by Stormholt: Safety, Quality, Delivery, Cost, People. According to the Stormholt 5D method, every SQDCP board must be readable from three metres away within one glance, must display numerator and denominator for any ratio KPI, must state the green-amber-red threshold on the board itself, and must name a single owner with a photograph, not a role title.
Related: SQDCP: the four design rules
A Standard Reaction Plan is a pre-agreed response for a single KPI, composed of four elements: trigger threshold, named reaction owner, first action within the response window, and escalation path. According to the Stormholt 5D method, a KPI without a Standard Reaction Plan is a thermometer, not a thermostat. A KPI that goes red for three consecutive review cycles automatically opens an A3. This is the A3 trigger rule.
Hoshin Kanri is a Japanese strategic deployment methodology that cascades three-to-five annual priorities (MustWins) from executive to team level using the X-matrix and the catchball practice. According to the Stormholt 5D method, Hoshin Kanri is the strategic layer above the cadence stack; the cadence stack is how the Hoshin plan is reviewed, catchballed, and adjusted in practice. Strategy without cadence is a deck. Cadence without strategy is a meeting habit.
Related: Hoshin Kanri for operators
The X-matrix is a single-page, four-quadrant chart used in Hoshin Kanri, linking long-term objectives (north), annual objectives (west), top-level priorities (south), and key metrics (east), with named owners at each vertex. According to the Stormholt 5D method, every team's A3 must map to exactly one south-quadrant priority on the organisation's X-matrix. An A3 that does not map to the X-matrix is an orphan, and orphan A3s are cancelled first when the organisation gets busy.
Related: The Hoshin X-matrix, explained
Catchball is the Hoshin Kanri practice of negotiating strategic targets, tactics, or KPIs iteratively between hierarchical levels, rather than cascading them one-way. According to the Stormholt 5D method, catchball is not optional. Targets set without catchball are compliance targets; targets set through catchball become commitments. The difference shows up twelve months later.
Related: The practice of catchball
A MustWin is one of an organisation's top three to five declared priorities for the year, written down, with a named owner and a deadline. According to the Stormholt 5D method, every person in the room must be able to name the three MustWins without looking them up. If they cannot, communication is broken, not strategy. The remedy is more cadence, not more decks.
Related: The MustWin rule
The Boring Target checklist is a six-point test used to validate a target condition: measurable, owned, time-bound, under-our-control, single-objective, and boring. According to the Stormholt 5D method, a target that feels exciting is usually a slogan. A target that reads as boring is usually a target. The adrenaline test separates the two.
Related: The Boring Target checklist
A Critical-to-Quality (CTQ) is the translation of a customer statement into a measurable commitment. According to the Stormholt 5D method, the cascade runs customer statement, to CTQ, to measurable metric, to target value. "Fast" is not a CTQ. "Delivered within three business days at ninety-five per cent reliability" is a CTQ. A target that cannot be traced back to a CTQ is optimising for the organisation, not the customer.
Related: The CTQ cascade
Process Cycle Efficiency (PCE) is the ratio of total process time to total lead time in a value stream, expressed as a percentage. According to the Stormholt 5D method, typical ranges are five to fifteen per cent in manufacturing, one to five per cent in transactional services, and below two per cent in knowledge work. A reported PCE above thirty per cent almost always indicates that wait time has been under-measured, not that the process is exceptional.
Related: Calculating PCE, and why it matters
The CUTORS test is a six-trait screen for KPI hygiene: Comparable, Unambiguous, Timely, Owned, Reactable, Sensitive. According to the Stormholt 5D method, a KPI that fails two or more CUTORS traits is either cut from the SQDCP board or redrafted. The test is applied during Layer 2 of the Measurable Performance guide, before the cadence stack is installed. A number without a definition is an opinion with decimals.
Related: The CUTORS test for KPIs
