Originally written in French. Translated by AI — the meaning has been preserved, not the prose.
Short definition
What carries the value a customer buys the product for: knowledge of the business, the rules, the workflows, the orchestration — the capacity to solve a problem better than an alternative.
Full definition
The phrase comes from technology product marketing, where it designates the central benefit, as opposed to the services and accessories around it.
In the articles on this blog, it serves above all as a decision criterion, and a test delimits it: if you replace this building block with another, does the business value of the service change? If yes, the block is too close to the core to be handed over to the customer; if no, it can become configurable, substitutable or hosted elsewhere.
The core product is therefore defined neither by what is hard to build nor by what cost a lot, but by whatever whose replacement would destroy the reason to buy.
Usage in the field
Used to settle what a vendor can hand over to the customer — its database, its email gateway, its model provider — and what it must keep.
Synonyms and variants
"the heart of the product", "what makes our value".
Not to be confused with
- Whole product — everything needed around the core so that a given customer can buy, deploy and operate the product. The first creates the value, the second makes it accessible.
- competitive advantage — a defensible position against competitors. A core product can be excellent and easily imitated.
- technical complexity — what was hard to build. An expensive module may carry none of the value in use.
Examples
In payroll software, the calculation engine, the collective-agreement rules and the orchestration of filings belong to the core product; SSO and data residency do not.
Ambiguities / debates
The border moves with the market: a block that is peripheral today can become differentiating if every competitor takes it up, or the reverse.