A customer journey is a sequence of interactions and experiences through which a customer pursues a goal. In domain analysis, journeys clarify processes without automatically defining domain boundaries. section 9.4.4
Compare a journey with subdomains rather than assuming they coincide:
- Fully aligned: one subdomain handles every step of the journey. section 9.4.4
- Aligned with delegation: one subdomain manages the journey while delegating parts to capabilities such as identity verification or wallets. section 9.4.4
- Unaligned: the journey composes several subdomains because its steps involve different concepts reused elsewhere. section 9.4.4
Mapping journeys for market development
EventStorming can map business workflows and customer journeys in detail. Teams analyze each step to identify modernization needed for new markets. A travel company learned this urgency when pandemic-era refunds overwhelmed a manual spreadsheet-based process, damaging customer experience and reputation. section 3.2.3
Using journeys in modernization workshops
A modernization workshop can connect customer pain points and product goals to capabilities in a monolith, then select and plan a first modernization slice. Product and engineering participants use the journey context to test architectural ideas against business objectives. section 4.4.2
Use the alignment diagram to distinguish a journey that maps directly to one subdomain from alternatives that delegate or split across boundaries. section 9.4.4





