In the present deliverable on the Trust Building System (TBS) end-user co-design research (D3.3), we provide the foundation for one of the five innovative services of GoTriple3, which also includes a Crowdfunding service, a Recommender System, a Visualisation and Discovery System, and an Open Annotation Tool. The TBS is a human-curated referral system whereby people provide personal recommendations to each other. Its purpose is to help Social Sciences and Humanities (SSH) researchers connect to reliable partners in order to fulfill their unmet needs. Examples include finding the right coordinators for Horizon Europe consortiums; experts such as PhD students or policy makers; and end-users such as workshop participants or pilot communities. Section 1 of the deliverable provides an overview of recommendations that we extracted through a careful review of previous TRIPLE project deliverables. Next, section 2 presents our iterative approach using advanced prototypes to conduct research with end-users to co-design the system. Finally, section 3 lays out the details of a comprehensive survey, which was circulated among consortium members and a select few of their partners, to get a better understanding of their pressing needs when it comes to reaching out to new partners. The combined results of all these reported activities are compiled into one list of recommendations, which will be used as a guiding document as we continue Task 5.3 — developing the Trust Building System for TRIPLE. Looking at the final results, we recognise that the Trust Building System offers unique features that can increase GoTriple’s appeal, notably thanks to the trusted components that distinguish this service from mainstream social networks. Finally, the integration of those results into D.5.3 “Trust Building System” paves the way for the development of the Trust Building System and its integration into GoTriple.

The deliverable awaits official approval by the Project Officer. --- The TRIPLE project (https://project.gotriple.eu/), which is financed under the Horizon 2020 framework (https://cordis.europa.eu/project/id/863420), under Grant Agreement No. 863420, with approx. 5.6 million Euros for a duration of 42 months (2019-2023). --- At the heart of the project is the development of the GoTriple platform (https://www.gotriple.eu/), an innovative multilingual and multicultural discovery solution.