Agile software development has large success rate due to its benefits and promising nature but natively where the size of the project is small. Requirement engineering (RE) is crucial as in each software development life cycle, “Requirements” play a vital role. Though agile provides values to customer’s business needs, changing requirement, and interaction, we also have to face impediments in agile, many of which are related to requirement challenges. This article aims to find out the challenges being faced during requirement engineering of agile projects. Many research studies have been conducted on requirement challenges which are somehow biased, no suggestions are given to improve the agile development process, and the research does not highlight large-scale agile development challenges. Hence, this article covers all the challenges discussed above and presents a comprehensive overview of agile models from requirement engineering perspective. The findings and results can be very helpful for software industry to improve development process as well as for researchers who want to work further in this direction.

中文翻译：

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敏捷软件开发中的需求工程挑战

敏捷软件开发由于其好处和前景广阔的性质而具有很高的成功率，但是自然而然地在项目规模很小的地方。需求工程（RE）至关重要，因为在每个软件开发生命周期中，“需求”都起着至关重要的作用。尽管敏捷为客户的业务需求，不断变化的需求和交互提供了价值，但我们还必须面对敏捷方面的障碍，其中许多障碍都与需求挑战相关。本文旨在找出敏捷项目的需求工程中面临的挑战。已经针对需求挑战进行了许多研究，这些挑战在某种程度上是有偏见的，没有提出改善敏捷开发过程的建议，并且该研究也没有突出大规模的敏捷开发挑战。因此，本文涵盖了上面讨论的所有挑战，并从需求工程的角度对敏捷模型进行了全面概述。这些发现和结果对软件行业改善开发过程以及希望在此方向上进一步开展工作的研究人员非常有帮助。