Optimizing business processes is an important topic in practice and in the education of computer scientists. Contributions in the professional literature on process optimisation mainly focus on the perspectives of process owners and management, who aim for time and cost savings. As a result, the aspect of inclusion and exclusion of people as a result of the digitalization of business processes can easily be lost from focus.The present contribution presents a method that encourages participants in discussions on process improvements to include accessibility aspects in their considerations at an early stage and to take them into account in subsequent process design.To this end, a set of cards has been developed that shed light on possible reasons for not being able to or not wanting to use a digital application. Understanding these reasons is intended to help improve the design of processes and software.Positive experiences with the use of the card set in university teaching in a computer science course are reported.