Improving event data quality in coherence with business requirements (BPMDS 2021) -- From Network Traffic Data to Business Activities: A Process Mining Driven Conceptualization -- A NLP-oriented Methodology to Enhance Event Log Quality -- Enhancing the value of data in processes improvement (BPMDS 2021) -- Detecting and Understanding Branching Frequency Changes in Process Models -- Detecting the "Split-Cases" Workaround in Event Logs -- "Towards a Content-Based Process Mining Approach in Personal Services -- Event stream and predictive monitoring (BPMDS 2021) -- Generating Reliable Process Event Streams and Time Series Data based on Neural Networks -- Inter-Case Properties and Process Variant Considerations in Time Prediction: A Conceptual Framework -- Towards Reliable Business Process Simulation: A Framework to Integrate ERP Systems -- Modeling languages and reference models (BPMDS 2021) -- Supporting Data-Aware Processes with MERODE -- Evaluating Perceived Usefulness and Ease of Use of CMMN and DCR -- Subject-Oriented Reference Model for Virtual Factory Operations Commissioning -- Enterprise Modeling (EMMSAD 2021) -- Participatory Modeling From a Stakeholder Perspective: On the Influence of Collaboration and Revisions On Psychological Ownership and Perceived Model Quality -- Reference Service Model for Federated Identity Management -- Traceability from the Business Value Model to the Enterprise Architecture: A Case Study -- Design Thinking and Enterprise Modeling: An Investigation of Eight Enterprise Architecture Management Projects -- Handling Models and Modeling Methods (EMMSAD 2021) -- Formalizing Conceptual Modeling Methods with MetaMorph -- Situation-specific Business Model Development Methods for Mobile App Developers -- Searching for Class Models -- From Mental Models to Machine Learning Models via Conceptual Models -- Threat and Evidence Modeling (EMMSAD 2021) -- Towards Measuring Test Coverage of Attack Simulations -- Murder, She Modeled: Modeling to Support Crimino-Forensic Processes. - Model-Driven Engineering & Applications (EMMSAD 2021) -- Model-Driven Engineering: A State of A airs and Research Agenda -- FloWare: an Approach for IoT Support and Application Development -- A Model-based Application for the Effective and Efficient Management of Data associated with Retina-Macula Pathology -- API Management Maturity of Low-Code Development Platforms.

This book contains the proceedings of two long-running events held along with the CAiSE conference relating to the areas of enterprise, business-process and information systems modeling: * the 22nd International Conference on Business Process Modeling, Development and Support, BPMDS 2021, and * the 26th International Conference on Exploring Modeling Methods for Systems Analysis and Development, EMMSAD 2021. The conferences were planned to take place in Melbourne, Australia, during June 28-29, 2021, but changed to an online format due to the COVID-19 pandemic. For BPMDS 10 full papers and 1 short paper were carefully reviewed and selected for publication from a total of 26 submissions; for EMMSAD 13 full papers and 1 short paper were accepted from 34 submissions. The papers were organized in topical sections as follows: BPMDS: Improving event data quality in coherence with business requirements; enhancing the value of data in processes improvement; event stream and predictive monitoring; modeling languages and reference models; EMMSAD: Enterprise modeling; handling models and modeling methods; threat and evidence modeling; and model-driven engineering and applications. .