Mussmann, AndreaBrunner, MichaelFelderer, MichaelHasselbring, WilhelmRabiser, RickJung, Reiner2020-02-032020-02-032020978-3-88579-694-7https://dl.gi.de/handle/20.500.12116/31731QE LaB Business Services integrated features focusing on requirements engineering offered by OpenReq, an EU Horizon 2020 project, into an existing commercial software for the management of security requirements. The microservices were integrated as part of a dedicated Open Call project where participants from industry were asked to integrate novel features from OpenReq into their own tools and evaluate them. In this paper, we discuss our experiences with the Open Call format of the project as well as the issues we encountered and lessons we learned following scientifically acknowledge success factors.enTechnology TransferExperience ReportRequirement EngineeringInformation Security Management.Text/Conference Paper10.18420/SE2020_511617-5468