Traditional centralized business process management approaches pose difficulties in coping with rapid changes and evolving process models. We developed the Plural method to allow for decentralized modeling of processes. The Plural method enables process participants, rather than a centralized group of process engineers or managers, to model and maintain their processes. In previous works, we introduced the Plural method and discussed its applications in case studies. This paper elaborates more into the notation component of the Plural method. We describe the diagram types used for capturing process information. We also present a case study performed in a small web application development company. We discuss the results together with a synthesis of the findings and lessons learned from our previous case studies.