Resumen: The paper summarizes the methods followed over thirty years (1984-2014) in the study of the subject “Law and information and communication technology (ICT)”. From the beginning the emphasis was placed on that the most appropriate approach is to put into action an interdisciplinary activity aimed at solving specific-real problems. The same methodology was used to develop juridical proposals able to integrate the use of the innovation brought by ICTs, as “electronic commerce or government”, in daily life. The paper concludes showing that the methodology is appropriate to participate in the creation and development of technological innovations such as the construction of services for “Smart Cities”. Idioma: Inglés DOI: 10.1007/978-3-662-45960-7_3 Año: 2014 Publicado en: Lecture Notes in Computer Science 8929 (2014), 26–40 ISSN: 0302-9743 Financiación: info:eu-repo/grantAgreement/ES/MICINN/IPT2011-0964-1006 Tipo y forma: Comunicación congreso (Versión definitiva) Área (Departamento): Área Filosofía del Derecho (Dpto. Dcho.Pe.,Filos.D.e Hª D.)