WEBIST [Setúbal] : SCITEPRESS-Science and Technology Publications, Lda. 332-333 (2021). doi:10.5220/0010675000003058 WEBIST 2021 : proceedings of the 17th International Conference on Web Information Systems and Technologies : online streaming, October 26-28, 2021 / sponsored by: INSTICC-Institute for Systems and Technologies of Information, Control and Communication ; edited by Francisco Domínguez Mayo, Massimo Marchiori and Joaquim Filipe.-Volume 1 WEBIST 2021 : proceedings of the 17th International Conference on Web Information Systems and Technologies : online streaming, October 26-28, 2021 / sponsored by: INSTICC-Institute for Systems and Technologies of Information, Control and Communication ; edited by Francisco Domínguez Mayo, Massimo Marchiori and Joaquim Filipe.-Volume 117. International Conference on Web Information Systems and Technologies, online, 2021-10-26-2021-10-28