~/talk

How to Make Better Modernization Decisions

Talkat DDD Europe 2022 · 2022-06-20..06-24· [legacy-modernisation]
slides:none on file

NYT commerce modernization maps a real subscription flow, runs service blueprinting + event storming, then interviews 24–30 internal stakeholders with a questions-and-assumptions workshop. Wardley mapping guides buy vs build choices so teams stop guessing. Outcome: a nine-month, flow-based UI that talks to legacy APIs and delivers immediate value rather than a big‑bang rewrite that previously failed and lost money; principle proven by shipping a lightweight app covering ~90% of users while routing edge cases to legacy systems—works.

AI-written summary · about

  1. 0:00Introduction and user stories
  2. 2:34The modernization challenge
  3. 5:55System complexity impact
  4. 10:57Evolution of business needs
  5. 13:53Process for mapping state
  6. 21:18Service blueprinting
  7. 27:02User research techniques
  8. 37:58Incremental modernization
  9. 43:50Buy vs build decision
  10. 49:14Heuristics and human factor
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