Act 5, scene 22: Drill-down: the deep layers

Scene 22: the deep layers

At the bottom of the stack, the deep layers stay where they are. Few customers' needs reach the deep layers, and those that do carry the most risk. In a brownfield product, the data model, the database and the infrastructure stay shared and unchanged, and an agent working in the language cannot reach them. The needs that do reach this far are handled case by case, and the site sets out how. Where a company already plans to rebuild the layer that applies configuration, that rebuild is the place to design the lower line in, and there the greenfield path begins.