ER 30th Anniversary Paper.- Thirty Years of ER Conferences: Milestones, Achievements, and Future Directions.- Keynotes.- A Frame Manipulation Algebra for ER Logical Stage Modelling.- Conceptual Modeling in the Time of the Revolution: Part II.- Data Auditor: Analyzing Data Quality Using Pattern Tableaux.- Schema AND Data: A Holistic Approach to Mapping, Resolution and Fusion in Information Integration.- Conceptual Modeling.- A Generic Set Theory-Based Pattern Matching Approach for the Analysis of Conceptual Models.- An Empirical Study of Enterprise Conceptual Modeling.- Formalizing Linguistic Conventions for Conceptual Models.- Requirements Engineering.- Monitoring and Diagnosing Malicious Attacks with Autonomic Software.- A Modeling Ontology for Integrating Vulnerabilities into Security Requirements Conceptual Foundations.- Modeling Domain Variability in Requirements Engineering with Contexts.- Foundational Aspects.- Information Networking Model.- Towards an Ontological Modeling with Dependent Types: Application to Part-Whole Relations.- Inducing Metaassociations and Induced Relationships.- Query Approaches.- Tractable Query Answering over Conceptual Schemata.- Query-By-Keywords (QBK): Query Formulation Using Semantics and Feedback.- Cluster-Based Exploration for Effective Keyword Search over Semantic Datasets.- Space and Time Modeling.- Geometrically Enhanced Conceptual Modelling.- Anchor Modeling.- Evaluating Exceptions on Time Slices.- Schema Matching and Integration.- A Strategy to Revise the Constraints of the Mediated Schema.- Schema Normalization for Improving Schema Matching.- Extensible User-Based XML Grammar Matching.- Ontology-Based Approaches.- Modeling Associations through Intensional Attributes.- Modeling Concept Evolution: A Historical Perspective.- FOCIH: Form-Based Ontology Creation and Information Harvesting.- Specifying Valid Compound Terms in Interrelated Faceted Taxonomies.- Application Contexts.- Conceptual Modeling in Disaster Planning Using Agent Constructs.- Modelling Safe Interface Interactions in Web Applications.- A Conceptual Modeling Approach for OLAP Personalization.- Creating User Profiles Using Wikipedia.- Process and Service Modeling.- Hosted Universal Composition: Models, Languages and Infrastructure in mashArt.- From Static Methods to Role-Driven Service Invocation - A Metamodel for Active Content in Object Databases.- Business Process Modeling: Perceived Benefits.- Industrial Session.- Designing Law-Compliant Software Requirements.- A Knowledge-Based and Model-Driven Requirements Engineering Approach to Conceptual Satellite Design.- Virtual Business Operating Environment in the Cloud: Conceptual Architecture and Challenges.