Ten terms, forty words each
The words of a redesign, in plain terms.
Each term: a definition, why it matters to you, a real-life example, and the service that answers it.
vibe coding
Vibe coding means describing what you want to an AI and accepting the code it produces without reading it.
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V1 and MVP
An MVP answers one question: does anyone want this? A V1 exists to bring in money every month. They are not the same product.
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code takeover
Taking over code means becoming responsible for a product you didn’t write: recovering access, understanding it, documenting it, evolving it.
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access rules
Access rules decide who is allowed to see and change which data. They live as close as possible to the database.
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redesign
Redesigning a product means rebuilding it on new foundations while keeping what works: the features, the data, the customers.
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zero-downtime migration
Migrating with zero downtime means running the old and new product side by side, then switching customers over once everything is verified.
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maintenance
Maintaining a SaaS isn’t waiting for the outage: it’s fixing, applying security updates, monitoring, and moving the roadmap forward.
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technical debt
Technical debt is the price of the shortcuts taken to move fast. You don’t see it on screen: you measure it in lead times.
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bus factor
The bus factor is the number of people who can disappear before your product is no longer maintainable.
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black box
A product becomes a black box when nobody knows what’s inside anymore. It runs, but every change is a gamble.
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One word sounds a little too familiar ?
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