doi:10.1007/s10796-018-9851-xengRequeno, J.I.Merseguer, J.Bernardi, S.Perez-Palacin, D.Giotis, G.Papanikolaou, V.Quantitative Analysis of Apache Storm Applications: The NewsAsset Case StudyART-2019-105899The development of Information Systems today faces the era of Big Data. Large volumes of information need to be processed in real-time, for example, for Facebook or Twitter analysis. This paper addresses the redesign of NewsAsset, a commercial product that helps journalists by providing services, which analyzes millions of media items from the social network in real-time. Technologies like Apache Storm can help enormously in this context. We have quantitatively analyzed the new design of NewsAsset to assess whether the introduction of Apache Storm can meet the demanding performance requirements of this media product. Our assessment approach, guided by the Unified Modeling Language (UML), takes advantage, for performance analysis, of the software designs already used for development. In addition, we converted UML into a domain-specific modeling language (DSML) for Apache Storm, thus creating a profile for Storm. Later, we transformed said DSML into an appropriate language for performance evaluation, specifically, stochastic Petri nets. The assessment ended with a successful software design that certainly met the scalability requirements of NewsAsset.2019http://zaguan.unizar.es/record/7890410.1007/s10796-018-9851-xhttp://zaguan.unizar.es/record/78904oai:zaguan.unizar.es:78904info:eu-repo/grantAgreement/ES/DGA/T21-17R-DISCOinfo:eu-repo/grantAgreement/EC/H2020/644869/EU/Developing Data-Intensive Cloud Applications with Iterative Quality Enhancements/DICEThis project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 644869-DICEinfo:eu-repo/grantAgreement/ES/MINECO/TIN2014-58457-RINFORMATION SYSTEMS FRONTIERS (2019), 1-19All rights reservedhttp://www.europeana.eu/rights/rr-f/info:eu-repo/semantics/openAccess