Engrain by ByteRush

QLT.12.02 SeniorCore — asked often

Component APIs, documentation and versioning + Adoption and governance

Comes up in: Frontend system design, Low-level design, Hiring manager

This concept is being written. It gets the full five steps — explanation, predict, interview angle, practice with tests, and review cards. Here is exactly what it will cover, so you can study it elsewhere in the meantime.

What it covers

  • API design principles (consistent props, composition, escape hatches)
  • accessibility built in
  • Storybook docs
  • semantic versioning and deprecation
  • codemods
  • visual regression
  • contribution models (centralised, federated)
  • measuring adoption
  • handling one-off requests
  • working with designers
  • staff-level influence stories

Words you will know

component APIdeprecationsemantic versioninggovernanceadoption metric

What you will practise

  • design the API for Button, Select and Modal
  • write a design-system adoption plan

Interview questions this answers

  • How would you design a Button component API for a design system?
  • How would you drive adoption of a design system across 10 teams?