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Requirements in the 21st Century: Current Practice and Emerging Trends Hansen, Sean Berente, Nicholas Lyytinen, Kalle Requirements modeling specification validation verification change large systems complexity stakeholders field study Requirements have remained one of the grand challenges in the design of software intensive systems. In this paper we review the main strands of requirements research over the past two decades and identify persistent and new challenges. Based on a field study that involved interviews of over 30 leading IT professionals involved in large and complex software design and implementation initiatives we review the current state-of-the-art in design requirements management. We observe significant progress in the deployment of modeling methods, tools, risk-driven design, and user involvement. We note nine emerging themes and challenges in the requirement management arena: 1) business process focus, 2) systems transparency, 3) integration focus, 4) distributed requirements, 5) layered requirements, 6) criticality of information architectures, 7) increased deployment of COTS and software components, 8) design fluidity and 9) interdependent complexity. Several research challenges and new avenues for research are noted in the discovery, specification, and validation of requirements in light of these requirements features. Schloss Dagstuhl – Leibniz-Zentrum für Informatik Sean Hansen and Nicholas Berente and Kalle Lyytinen 2009 Is Part Of Dagstuhl Seminar Proceedings, Volume 8412, Perspectives Workshop: Science of Design: High-Impact Requirements for Software-Intensive Systems (2009) InProceedings Text doc-type:ResearchArticle publishedVersion application/pdf doi:10.4230/DagSemProc.08412.11 urn:nbn:de:0030-drops-19892 https://drops.dagstuhl.de/entities/document/10.4230/DagSemProc.08412.11 eng https://creativecommons.org/licenses/by/4.0/legalcode