How to handle multiple stories with changes on the same big Cobol program/module in a Scrum Sprint without ending in a mini-waterfall at the end of the Sprint?
The risk is that the development sub-tasks of multiple stories are linked to each other, with 1 or 2 (pair programming) developers, and by this action all those stories are delivered at the same time. The result is a waterfall Sprint Burndown, and we want to avoid that.
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Have you considered swarming? Everyone involved works together and there is little downtime from a development standpoint. Instead of various sub tasks in progress at once they are instead addressed sequentially within a sprint. This also breaks down knowledge and communication barriers.
Glad to see cobol and agile in the same sentence.