3.2 · Marketing

Marketing Mix — from 4C to 4P, from Requirements to Design

2026.07.11~4 min

00Overview

01Why

The strategy process settled what to build — who to help, what value to deliver. But settled value delivers nothing by itself. It needs a stage that gives it shape.

The marketing mix is the combining of the elements that carry value to a market: what (product), at what price, through where (place), told how (promotion). Not four separate dials, but four pieces meshed toward one aim — hence "mix." This is the core of what gets decided while building.

02How

Assembly takes two viewpoints: 4C, seen from the customer; and 4P, seen from the provider.

  • 4C (customer view) — Customer Value / Cost / Convenience / Communication. What they want, what they'll pay, how they get it, how they hear of it.
  • 4P (provider view) — Product / Price / Place / Promotion. What you make, what you charge, where you put it, how you tell it.

The textbooks often lead with 4P. I believe 4C has to come first — because 4C is the customer's wants (the requirements), and 4P is the provider's moves (the design). In software, design something before the requirements are fixed and rework is guaranteed. Marketing is no different: settle what the customer wants (4C), then translate it into your own moves (4P).

# The building phase
4C (requirements — the customer's wants)  →  4P (design — the provider's moves)

Writing down the customer's wants is 3.2.1; translating them into moves is 3.2.2.

03What

The mix does not produce a feature list.
It produces a design where customer wants and provider moves mesh.

When 4C and 4P correspond one-to-one, what you build doesn't drift. The value they seek maps to Product; the cost they'll bear, to Price; the ease of getting it, to Place; the way it reaches them, to Promotion. Requirements bridged cleanly into design. Only now does implementation begin.