Software Ecosystems, Sustainability and Human Values in the Social Web [electronic resource] : 8th Workshop of Human-Computer Interaction Aspects to the Social Web, WAIHCWS 2017, Joinville, Brazil, October 23, 2017 and 9th Workshop, WAIHCWS 2018, Belém, Brazil, October 22, 2018, Revised Selected Papers /

An Analysis of UX based on Users' Emotional Intention and Values, both expressed through Twitter Posts -- KIPO Opportunities for Interoperability Decisions in Systems-of-Information Systems in the Domain of Environmental Management -- Towards a Conceptual Model to Understand Software Ecosystems Emerging from Systems-of-Information Systems -- MobiBus: A Mobile Application to Keep Track of Buses in Small Cities -- Analysis of terms of use and privacy policies in social networks to treat users' death -- What to See in a Scientific Event? A Social Recommendation Model of Technical Sessions -- Exploring Sustainability in Real Cases of Emerging Small-to-Medium Enterprises Ecosystems -- Challenges for the Implementation of Accessible Web and Mobile Systems. .

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