The CAiSE Adventure.- Evolution of the CAiSE Author Community: A Social Network Analysis.- A Natural Language Approach for Requirements Engineering.- Conceptual Modeling & Natural Language Analysis.- The Three Dimensions of Requirements Engineering: A Framework and its Applications.- The Three Dimensions of Requirements Engineering: 20 Years Later.- Towards a Deeper Understanding of Quality in Requirements Engineering.- 20 Years of Quality of Models.- METAEDIT] A Fully Configurable Multi-User and Multi-tool CASE and CAME Environment.- MetaEdit+ at the Age of 20.- OO-METHOD: An OO Software Production Environment Combining Conventional and Formal Methods.- The Conceptual Model is The Code. Why Not?.- Architecture and Quality in Data Warehouses.- Data Warehouse Architecture and Quality: Impact and Open Challenges.- Time Constraints in Workflow Systems.- Workflow Time Management Revisited.- Adaptive and Dynamic Service Composition in eFlow.- Promises and Failures of Research in Dynamic Service Composition.- On Structured Workflow Modelling.- The Structured Phase of Concurrency.- A Requirements-driven Development Methodology.- The Evolution of Tropos.- The P2P Approach to Interorganizational Workflows.- Reflections on a Decade of Interorganizational Workflow Research.- Database Schema Matching Using Machine Learning with Feature Selection.- Automatch Revisited.- Data Integration under Integrity Constraints.- Rewrite and Conquer: Dealing with Integrity Constraints in Data Integration.- Automated Reasoning on Feature Models.- Automated Analysis of Stateful Feature Models.- Change Patterns and Change Support Features in Process-Aware Information Systems.- Process Change Patterns: Recent Research Use Cases Research Directions.- Measuring Similarity between Business Process Models.- A Short Survey on Process Model Similarity.- How Much Language is Enough? Theoretical and Practical Use of the Business Process Modeling Notation.- We Still Don't Know How Much BPMN is Enough but We are Getting Closer.- The Future of CAiSE.