This slide describes an internal community on software engineering at Hitachi corporate group. Originally revealed at XP祭り2019 - conference on eXtreme Programming in Japan.
The document discusses common pitfalls in API design and developer experience (DX). It notes that many APIs are designed based on the user experience (UX) of the underlying services, rather than focusing on DX. This results in obstacles like complex documentation, restrictive access policies, and unclear data formats that make APIs difficult for developers to use. The presentation argues that APIs should redefine UX as DX by focusing on the needs of developer users through measures like automated documentation, liberal trial access, and technical support.