Citation: Vergilio, T and Ramachandran, M (2019) Non-functional requirements for real world big data systems: an investigation of big data architectures at Facebook, Twitter and Netﬂix. Proceed- ings of the 13th International Conference on Software Technologies, 1. pp. 833-840. DOI: https://doi.org/10.5220/0006825408330840 Link to Leeds Beckett Repository record: https://eprints.leedsbeckett.ac.uk/id/eprint/6192/ Document Version: Article (Published Version) Creative Commons: Attribution-Noncommercial-No Derivative Works 4.0 Copyright c  2018 by SCITEPRESS - Science and Technology Publications, Lda. All rights reserved. ISBN: 978-989-758-320-9 The aim of the Leeds Beckett Repository is to provide open access to our research, as required by funder policies and permitted by publishers and copyright law. The Leeds Beckett repository holds a wide range of publications, each of which has been checked for copyright and the relevant embargo period has been applied by the Research Services team. We operate on a standard take-down policy. If you are the author or publisher of an output and you would like it removed from the repository, please contact us and we will investigate on a case-by-case basis. Each thesis in the repository has been cleared where necessary by the author for third party copyright. If you would like a thesis to be removed from the repository or believe there is an issue with copyright, please contact us on openaccess@leedsbeckett.ac.uk and we will investigate on a case-by-case basis.