The pattern that adds context (weather, location, device state, session attributes, time-of-day, prior session memory) at the moment of decisioning rather than in batch. Required for recipes where the relevance of the decision depends on conditions changing faster than batch update cycles. Trades latency against richness, with edge-side enrichment forcing simpler downstream model architectures.
The capability a stack needs to run this pattern, and the vendors that provide it, on Martech Stack Builder.