Role-based Development of Dynamically Evolving Esembles.- Parameterized Strategies Specication in Maude.- An Algebraic Theory for Data Linkage.- Institutions for SQL Database Schemas and Datasets.- Finite Limits and Anti-Unication in Substitution Categories.- A Flexible Categorial Formalisation of Term Graphs as Directed Hypergraphs.- Term Charters.- Constructing Constraint-Preserving Interaction Schemes in Adhesive Categories.- Structuring Theories with Implicit Morphisms.