\input zb-basic \input zb-ioport \iteman{io-port 06044035} \itemau{Solhaug, Bj{\o}rnar; St{\o}len, Ketil} \itemti{Uncertainty, subjectivity, trust and risk: How it all fits together.} \itemso{Meadows, Catherine (ed.) et al., Security and trust management. 7th international workshop, STM 2011, Copenhagen, Denmark, June 27--28, 2011. Revised selected papers. Berlin: Springer (ISBN 978-3-642-29962-9/pbk). Lecture Notes in Computer Science 7170, 1-5 (2012).} \itemab Summary: Trust management involves the identification and analysis of trust relations. However, adequately managing trust requires all the relevant aspects of trust to be addressed. Moreover, which aspects to address depend on the perspective of the trust management. In this position paper we relate the notion of trust to the notions of uncertainty, subjectivity and risk, and we explain how these aspects should be addressed and reasoned about from three different perspectives. \itemrv{~} \itemcc{} \itemut{Aleatory uncertainty; epistemic uncertainty; subjective; objective; trust; risk; trust management} \itemli{doi:10.1007/978-3-642-29963-6\_1} \end