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Several scientific studies face a problem: how do we collect good data? No one wants to fill out questionnaires, surveys are time-consuming, collecting data 'in the wild' is prone to error.


We developed Hayfind, a system that collects and analyzes big data. To collect the data we created several apps that can be completely unique in their appearance, how they are used and what they measure. By using gamification techniques, we make an important contribution to monitoring specific target groups and collecting passive and active data. The data goes directly from the user’s mobile phone into the Hayfind database, error-free and immediately available for analysis. We ensure that the data remains secure and that only the right people have access.