Many business architecture (BA) practices define what they do and how they organize their resources based on a one-size-fits-all model rather than with a view toward stakeholder value. The common critical success factor of these approaches is the need to focus on stakeholder needs rather than BA leader preconceptions. This is an update of a previously published report; Forrester reviews and revises it periodically for continued relevance and accuracy. We are now updating it to reflect our most recent thinking on effective business architecture operating models.