On Architecture.- The Institutional Logic of Harmonization: Local versus Global Perspectives.- Systems Approaches in the Enterprise Architecture field of research: A Systematic Literature Review.- Affordance-driven Software Assembling.- Understanding Architecture Principles as Working Mechanisms.- On Security and Blockchain.- Conceptualizing DEMO business transactions with Blockchain HyperLedger Composer to enable Traceability and Control.- Enterprise Engineering in Business Information Security: A case study in Security, Risk and Compliance Artefact Engineering.- Exploring a Role of Blockchain Smart Contracts in Enterprise Engineering.- On DEMO.- Validating the DEMO Specification Language.- Modeling the system described by the EU General Data Protection Regulation with DEMO.- DEMO As A Tool of Value Co-Creation Strategy Realization.- Colored Petri-Net for Implementing DEMO/PSI Transactions for N Actor Roles (N>=2).- On Teaching.- On Teaching Enterprise Modelling.