Impact analysis, which concerns the analysis of the impact of proposed changes to a system, is an important change management activity that previously has been studied mostly with respect to technical aspects. In this paper, we present results from a study where issues with impact analysis were prioritised with respect to criticality by professional software developers from an organisational perspective and a self-perspective. We visualise the prioritisation in a way that allows us to identify priority classes of issues and to discuss differences between the perspectives. Furthermore, we look at issue characteristics that relate to said differences, and identify a number of improvements that could help mitigate the issues. We conclude that looking at multiple perspectives is rewarding and entails certain benefits when dealing with software process improvement, but also that the prioritisation and visualisation approach seems to be good for optimising software process improvement efforts in general.