Peak-end rule in marketing

절정·대미 법칙

The strongest moment and ending can shape how an experience is remembered.

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html
<div class="journey"><div class="head">EXPERIENCE OVER TIME <b id="ending">STRONG END</b></div><svg viewBox="0 0 400 150" preserveAspectRatio="none"><polyline points="10,100 90,92 170,30 250,98 325,86 390,32" id="line"/><circle cx="170" cy="30" r="7"/><circle cx="390" cy="32" r="7" id="last"/></svg><div class="labels"><span>START</span><span>PEAK</span><span>END</span></div></div>
css
@media(min-width:700px){body>div{transform:scale(1.45)}}.journey{width:min(87%,590px);font:800 clamp(10px,max(1.7vmin,1vw),13px)/1 sans-serif}.head{display:flex;justify-content:space-between;gap:8px;letter-spacing:.06em}.head b{color:var(--accent)}svg{width:100%;height:clamp(80px,25vmin,220px);margin-top:clamp(9px,2vmin,20px);border-bottom:2px solid var(--fg);overflow:visible}polyline{fill:none;stroke:var(--fg);stroke-width:4;stroke-linejoin:round;transition:.6s}circle{fill:var(--accent);stroke:var(--bg);stroke-width:3}#last{transition:cy .6s}.labels{display:flex;justify-content:space-between;color:var(--muted);margin-top:7px}
js
const line=document.querySelector('#line');const last=document.querySelector('#last');const ending=document.querySelector('#ending');let high=true;function flip(){high=!high;line.setAttribute('points','10,100 90,92 170,30 250,98 325,86 390,'+(high?32:120));last.setAttribute('cy',String(high?32:120));ending.textContent=high?'STRONG END':'ROUGH END'}setInterval(flip,1500);

The peak-end rule is an observation that a high-intensity moment and the ending can influence memory more than an experience's average. Delivery, setup, and support remain part of a brand experience after purchase.

The demo changes the final point of the same journey and highlights the two moments. Its memory cue is illustrative, not a formula for actual satisfaction.

Polishing the final scene cannot erase repeated friction earlier in a journey. Measure the whole experience before deciding what to improve.

When to use

Use it to inspect high-intensity and closing moments in a customer journey.

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