Hussain, WClear, Tony2012-08-162012-08-162012-03-192012-03-192nd International Requirements Engineering Efficiency Workshop (REEW 2012) held at Essen, Germany, Essen, Germany, 2012-03-19https://hdl.handle.net/10292/4565[Context and motivation] In the delivery driven context of contract software production, efficient and effective requirements change management (RCM) remains a challenge for global software development (GSD). [Question/problem] New RCM models need to be devised for GSD settings, to reduce confusion and improve the efficiency of managing requirements change and the resulting impacts. [Princi-pal ideas/results] We present a model drawn from a case study which evaluated RCM practices in a GSD organization, with sites based in USA and Pakistan. [Contribution] We extend the observed practices by developing a theoretically informed process model to improve RCM efficiency and effectiveness by using a baseline requirements artifact and tool supported collaboration process.NOTICE: this is the author’s version of a work that was accepted for publication. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in (see Citation). The original publication is available at (see Publisher's Version).Global Software DevelopmentMulti Site Requirements Change Management ModelGlobal Requirements Change Management ModelRequirements EngineeringConference ContributionOpenAccess