Making Sense of Business Process Descriptions: An Experimental Comparison of Graphical and Textual Notations
How effective is a notation in conveying the writer's intent correctly? This paper identifies understandability of design notations as an important aspect which calls for an experimental comparison. The authors compare the success of university students in interpreting Business Process descriptions, for an established graphical notation (BPMN) and for an alternative textual notation (based on written use-cases). Because a design must be read by diverse communities, including technically-trained professionals such as developers and business analysts, as well as end-users and stakeholders from a wider business setting, they used different types of participants in their experiment.