Abstract
This chapter introduces contextualization of events as a means to improve decision support systems in clinical environments. Modern hospitals are full of technology producing electronic records of events and activities, each meaningful in their specific context. This creates the opportunity to culminate these events into a wealth of information that we can tap into to make better informed decisions and facilitate coordination. By means of a problem frame analysis of a use case in a hospital setting, the importance of event contextualization is presented. The authors explain and evaluate how the quality of these events impact decision making when changes to a pre-set patient trajectory occur.