>Developer productivity is not linear in function of task difficulty. Tried to come up with the draft of an equation (upgrades welcome ;): cDev = capability(d

>Developer productivity is not linear in function of task difficulty. Tried to come up with the draft of an equation (upgrades welcome ;): cDev = capability(dev); // > 0 dTask = difficulty(task); // > 0 ssttTask = shortestSolutionTypingTime(task); // > 0 pk = priorKnowledge(dev,task); // in [0,1] lcd = log(cDev / dTask); timeTaken(dev,task) = (cDev <= dTask) ? +Infinity : ssttTask * ((1 - pk + lcd) / lcd); productivity(dev,task) = ssttTask / timeTaken(dev,task) = (cDev <= dTask) ? 0.0 : lcd / (1 - pk + lcd); // in [0,1]