Value-Driven Delivery
Value is the lens
Every backlog decision is a value decision. Understand business value, cost of delay, and the financial tools exam questions like to compare. Net present value (NPV) discounts future cash flows into today's money - higher NPV wins. Internal rate of return is the discount rate at which NPV equals zero - higher IRR wins. Payback period shows how fast the investment returns but ignores time value and total value, so a short payback alone is a weak argument. Cost of delay is the money lost per unit of time a feature waits, and Weighted Shortest Job First sequences work by cost of delay divided by job size.
Prioritisation and slicing
Know the schemes and when each fits: MoSCoW for scope negotiation, Kano for customer satisfaction, WSJF for economic sequencing, and simple value/risk ranking. Deliver value in Minimum Marketable Features and thin end-to-end slices rather than complete horizontal layers. Treat regulatory and compliance work as value-bearing, not as a distraction. Track technical debt as a real cost that erodes future value.
Worked example
Feature A: value 8, duration 2 → WSJF 4. Feature B: value 9, duration 9 → WSJF 1. Do A first even though B scores higher on raw value, because value per unit of effort is four times better.
Traps
Ranking by easiest item, loudest stakeholder, or "foundational" architecture with no demonstrable value; ignoring risk in prioritisation; using earned value as a punitive metric rather than a forecast.
Rule of thumb: highest value per unit of effort first; when two items tie on value, do the one that buys the most learning or removes the most risk.