Core domains (MIA, Advisory) get the best developers and the most investment. Supporting subdomains (Identity, Portfolio, Distribution, Markets, Estate) can use simpler patterns. Generic subdomains (Payments, Notifications) should be bought or wrapped — never build what you can buy.
-- Domain-Driven Design, Eric Evans (2003) | Implementing DDD, Vaughn Vernon (2013)
Team Topology Mapping
Each bounded context maps to a stream-aligned team. MIA + Advisory = AI Advisory Team. Portfolio + Distribution = Execution Team. Identity = Platform Team. Payments + Notifications = Enabling Team.