QA Notebook.

THE NOTEBOOK / 08 ARTICLES

Articles on QA and testing

I write about test design, teamwork, and ways to use AI.
Pick a topic below to find something useful for your work.

Browse by topic ALL 08 NOTES

TEST DESIGN

Test design

Examples and notes on writing tests other people can run.

TEAM & PROCESS

Teams & process

Notes on planning work and sharing information with a team.

AI IN PRACTICE

AI in practice

Ways to use AI in QA, with examples of what to check.

BEHIND THE NOTEBOOK

かさね抄かさねしょう

QA engineer / Test design, bug analysis & AI-assisted QA

About the author

About Kasane

I’m Kasane, a QA engineer. I have worked across multiple products at seven companies, mainly in third-party software testing, with experience as an acting team lead and in supporting QA team operations. I hold the JSTQB Foundation Level certification.

My strengths include test design, bug analysis, regression testing, and localization QA. I also work with AI-assisted QA and am interested in evaluating Japanese language quality, AI output, and audio and text data. On this blog, I share testing and investigation approaches with practical steps and examples.

I built CSV CHECK to check CSV files for missing and duplicate values. I’m also working on QA Cert Drill, an app for QA certification study. This site includes project guides and examples of what to test.

  • Test design & bug analysis
  • Localization QA
  • AI output & Japanese language evaluation