  Personality traits such as Need for Cognition, Locus of Control, Mindset and
Self-efficacy could impact the perception, acceptance and appreciation of
recommendations provided to support configuration tasks in the End User
Development (EUD) context. In this paper we describe the user model services we
have developed to measure such traits. These services can be accessed by users
through a simple web interface and can be queried by EUD applications by means
of REST API.
