The Disciplined Agile Delivery (DAD) process framework organizes the delivery of a solution into three distinct, goal-driven phases. The Inception phase focuses on envisioning the product, securing agreement on scope, and initial planning. The Construction phase is where the team incrementally builds a potentially consumable solution through a series of iterations or a lean, continuous flow. Finally, the Transition phase ensures the solution is successfully deployed into production and that stakeholders are prepared to receive and operate it. These phases provide a structured yet flexible approach to agile delivery.

A. Commencement, Creation, and Evolution are generic terms and not the specific, official names for the phases within the DAD framework.

B. While "Initiation" is a common project management term, it and the other terms are not the defined phases of the DAD delivery life cycle.

C. Introduction, Substance, and Alteration are descriptive but do not represent the formal terminology used in the Disciplined Agile toolkit.

1. Ambler, S., & Lines, M. (2019). Choose Your WoW!: A Disciplined Agile Delivery Handbook for Optimizing Your Way of Working. Project Management Institute. Chapter 3, "The Disciplined Agile Delivery (DAD) Process Framework," specifically Figure 3.1 and the section "The Phases of a DAD Delivery Lifecycle," pp. 38-40, explicitly detail the Inception, Construction, and Transition phases.

2. Project Management Institute. (2017). A Guide to the Project Management Body of Knowledge (PMBOK® Guide) – Sixth Edition. Agile Practice Guide, Section 5.2.3.2, p. 98. While not the primary DAD text, the Agile Practice Guide, co-developed with the Agile Alliance, references DAD's phased approach, noting its structure which includes Inception, Construction, and Transition to support enterprise-level agility.