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It seems like this question is based on the misconception that decomposing a large feature into smaller units of work is a form of big design up-front. It's not. Big design up-front is designing the whole system, or at least large parts of a system, before starting any implementation and integration happens. Although decomposition is a design activity, it's ...


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Scrum and its associated techniques don't eliminate the need for long-term planning but they can help make your planning and estimation tasks easier. If you deliver in fixed-length increments then your estimation only needs to be good enough to estimate the number of sprints a big ticket item will take rather than the number of days effort or duration. ...


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Just a thought if anyone wants to build it... Median hours * inverse scale probability range multiplier N hr with d/d average deviation (not standard). On entering N and d a range calculator will write it in english for confirmation. Where the d is the distribution range half the time because half is simplest. e.g. 1hr *3/3 (3 hours to 20 minutes, normally 1 ...


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