Story Points or Task Hours

In this article, Chia Wei Cheng discusses the common controversies about story points and task hours during Scrum sprint planning. He defines story point as a high-level estimation of complexity made before sprint planning. On the other hand, he wrote that “the task-hour estimation is a low-level estimation made to represent the actual effort in hours needed to accomplish all the requirements of a story.

Such an estimation should be done during sprint planning for highest possible accuracy, as the actual development may start the next day.” He concludes that as story points and task hours serve different purposes at different times, there is no need to force a relation between them.

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