The Cone of Uncertainty in Light of a Fixed Schedule
On many projects, completion dates are constrained by external factors. Consumer goods such as video games need to be on store shelves by the end of September to have enough market exposure for the December holiday shopping season. Similarly, tax software in the United States isn't much use after the year's tax season is over on April 15. Agile software development projects use the concept of time-boxes, where iterations are bounded to a fixed duration; an iteration is done when its 2- to 4-week schedule runs out. Does the cone of uncertainty still apply in these projects? Yes, it just looks different. In these situations, what's certain is the completion date. What's uncertain is the specific ...
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