Dual-track agile splits product work into two continuous streams: discovery (deciding what to build and de-risking it) and delivery (building it well). They run in parallel, not in sequence.
If you only deliver, you ship the wrong things efficiently. If you only discover, you learn but never ship. Great teams do both continuously — discovery feeds a validated backlog into delivery.
Before committing engineering time, test the four big risks: value (will they use it?), usability, feasibility, and business viability. A day of discovery can save a quarter of delivery.
Discovery insights must flow into delivery specs, and delivery data must flow back into discovery. The feedback loop is the whole point.
Before speccing MB Voice, the discovery was a hundred-plus real buyer conversations mapping where calls broke down. Delivery only started once the highest-value problem was clear — that's why the build stayed focused.
Never let the build team run dry, and never let it build unvalidated work. Discovery keeps the delivery pipe full of the right things.
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