I’ve been meaning to write a comparison of Waterfall and Agile software development, as well as the truths in the PMBOK. Until then, I just want to point out one key difference: efficiency order vs. value order.
This is my own terminology, but “efficiency order” and “value order” seem to be the two most reasonable responses to the question, “In what order will work be performed?” Work can be ordered according to the value generated, such that the highest priority work is accomplished first. Or work can be ordered according to the sequence with the least waste. Value order puts building a submarine hull before installing sonar, since submariners can live without sonar, but not without a hull. Efficiency order might install sonar before the hull is complete if doing so requires less labor and improves the schedule. Continue reading “Efficiency Order vs. Value Order”