YiSu Grain

Jul 21, 2026 · Fundamentals

Day 29: Mapping Enterprise Architecture’s Four Domains & TOGAF ADM from Business Goals to Migration Roadmap

This article explains how enterprise architects should start from business objectives, define the four architecture domains—business, data, application, and technology—apply TOGAF’s ADM phases B/C/D, perform baseline‑to‑target gap analysis, and craft a phased migration roadmap, using a retail chain case study to illustrate common pitfalls and exam‑ready answers.