The four pillars.
Cascade. Capture.
Constraints. Compound.

Four words. Four principles. Twenty-eight tools. One operating system. The Groundwork methodology can be summarised in this paragraph if you already know the system; if you don't, it needs a longer explanation, which is what this essay is. The four pillars are Cascade, Capture, Constraints, and Compound. Together they form the four-letter operating spine of every Groundwork artefact and every Groundwork decision.

This essay is the methodology in full. What each pillar contributes. How they interact. Why these specific four and not three or five. And the two named series — Coaching and Resilience — that sit alongside the four pillars as specialised layers for specific contexts.

Pillar one · Cascade

Cascade is the architectural commitment. Five layers — values, annual blueprint, quarterly plan, weekly review, daily focus sheet — each inheriting from the one above. Nothing in the system floats. (See the deep-dive.)

The Cascade is what makes the system different from disconnected planning. Most planners handle one or two layers; the Cascade insists on all five being explicit, linked, and operative. The traceability test — any line in the daily layer can be traced upward through weekly, quarterly, annual, to a value — is the test that the Cascade passes and disconnected planning fails.

Pillar two · Capture

Capture is the input layer. The mind is for thinking, not for storing — so everything that needs to be remembered gets transferred to an external system you trust. The Brain Dump Page handles the weekly catch. The Quick Capture inbox catches the daily arrivals. The weekly Processing section sorts everything into Action / Project / Reference / Trash. (See the Brain Dump deep-dive.)

Capture is the framework most directly inherited from David Allen's GTD. The Groundwork operationalisation pairs the capture artefacts (Brain Dump Page, Quick Capture inbox) with the Weekly Review's processing section so the captures don't accumulate into an undifferentiated mass.

Pillar three · Constraints

Constraints is the focus layer. The principle is that focus emerges from structural limitation rather than from willpower. Three priorities per day, not five. Ninety-minute deep work blocks, not open time. One Must-Not-Do, written down. Pre-meeting structure, not improvisation. Each Constraints tool is built around a specific limit that produces a specific kind of focus.

The Constraints pillar contains the Daily Focus Sheet, the Deep Work Planner, the Stoic Journal, the Meeting Mastery Planner, and the Interview Prep Kit. (See Three priorities, the Ivy Lee story and Deep work in 90 minutes.) Each tool enforces a particular structural limit that produces the focus the situation requires.

Pillar four · Compound

Compound is the long-horizon layer. The principle is that the outcomes that matter — strength, sleep, wealth, knowledge, relationships, career — accumulate from small daily inputs over years. They are invisible at any single point and very visible across the full duration. The Compound pillar makes the accumulation legible by logging it.

The Compound pillar contains the Strength Log, Sleep & Recovery, Habit Stack Builder, Net Worth Tracker, Reading Log, Fatherhood Planner, Career Clarity Map, Promotion Case Builder, and New Job 90-Day Planner. Nine tools across three Compound Series posts (body, wealth and family, career). The logging is the discipline; the visible curve is the reward.

The two named series

Alongside the four pillars sit two specialised series that handle contexts the pillars alone don't fully address:

The Coaching series. Four tools — Values Architecture, Weekly Debrief, Accountability Framework, GROW Session Planner — that provide structured self-coaching using the principles of ACT, Motivational Interviewing, and the GROW model. (See Values Architecture deep-dive and the Coaching tools deep-dive.) The Coaching series sits above the daily layer of the Cascade, providing the values and accountability infrastructure that makes the daily work coherent over years.

The Resilience series. Five tools — Resilience Audit, Pressure Response Journal, 90-Day Debrief, Transition Planner, Transition Intelligence Kit — that handle the periods where normal planning breaks down. Redundancy, illness, bereavement, major transitions. (See when planning has to hold a hard week and the transition framework.) The Resilience series exists because the four pillars assume a roughly stable life; when stability breaks, a different toolkit is needed.

Why these four pillars and not three or five

Three pillars would have produced an incomplete system. Without Cascade, the daily work has no direction. Without Capture, the capacity gets consumed by open loops. Without Constraints, focus gets dissipated across too many priorities. Without Compound, the long-horizon outcomes go untracked and drift. Any three of the four leaves a structural gap.

Five pillars would have produced redundancy. Earlier drafts of the methodology included additional pillars — Connection, Choice, Composition — that turned out to be subdomains of the existing four. Connection is a Compound outcome (the relationships that compound). Choice is a Constraints discipline (the three priorities). Composition is a Cascade architecture (the four-domain spread). Each candidate fifth pillar collapsed back into one of the existing four.

Four is the natural count for the methodology. The alliteration is a bonus, not the driver.

The honest next step

If the four-pillar framing makes sense, the complete Groundwork bundle at £54.99 is the full operational version. The Groundwork OS at £19.99 is the digital-only version. The free 7-Day Focus Sprint is the entry-level version that touches three of the four pillars (Cascade, Capture, Constraints) and runs for a week without payment.

Four pillars. Two series. Twenty-eight tools. One connected operating model.