Why Agile Development Is Not About Fast Delivery but About Responding to Changing Requirements

Ruddy Lee, a well‑known agile and lean practitioner, clarifies that the purpose of agile development is not to deliver software faster, but to provide a flexible method for handling rapidly changing requirements.

Many managers mistakenly view agile as a speed‑up technique because it appears quicker than traditional waterfall methods, leading to complaints about slow progress despite adopting agile practices.

The article corrects the misunderstanding of the term "agile," emphasizing that it means rapid response to requirement changes rather than the outdated RAD approach.

To illustrate the concept, a coin‑flip game is used to demonstrate how pre‑work time creates waste; reducing or eliminating this pre‑work shortens overall cycle time.

Traditional development suffers from long pre‑work phases where later stages wait for earlier ones, wasting resources. Agile adopts a pragmatic approach by starting the next step as soon as enough requirements for an iteration are gathered, merging analysis, design, development, and testing into a single step, resulting in a lightweight, derivative design process.

Agile also shortens the first release time by delivering small, potentially shippable increments each iteration, allowing customers to provide feedback early and frequently, unlike the single‑release model of traditional development.

Regarding data requirements, agile foregoes exhaustive analysis; once the backlog contains enough ready work (Definition of Ready), development begins, avoiding delays caused by waiting for complete specifications.

Testing becomes continuous throughout the development cycle, eliminating the need for separate alpha, beta, and gamma testing phases that pause development.

The article concludes that understanding agile as a rapid response mechanism explains why it focuses heavily on handling requirement changes, and stresses the importance of good user stories and abstract problem‑solving to maintain speed.

In a Q&A section, Ruddy advises splitting large stand‑up meetings into smaller groups and using refinement meetings to improve requirement quality, recommending the "Decide as Late as Possible" principle and adding a Definition of Ready column to the Kanban board.

Finally, the article promotes a three‑day Docker‑based DevOps training course, providing details on dates, location, and pricing.