Disciplined Agile Delivery (DAD) is a framework that helps organizations scale agile by focusing on solutions rather than just software, adopting a full delivery lifecycle from inception to transition, tailoring processes to each situation, promoting enterprise awareness, and implementing lean governance. DAD emphasizes goals over prescriptive processes and incorporates disciplines like reducing feedback cycles, continuous learning, incremental delivery, and streamlined work from start to finish. It enables agility at scale through a hybrid approach combining agile and traditional methods.