On Enterprise Engineering and DEMO -- Enterprise Operational Analysis Using DEMO and the Enterprise Operating System -- Engineering the Decision-Making Process Using Multiple Markov Theories and DEMO -- Towards Competence-Based Enterprise Restructuring Using Ontologies -- The Enterprise Engineering Domain -- On Business Process Management, Simulation and Analysis -- Towards Multi-perspective Modeling with BPMN -- Analysis of Business Processes with Enterprise Ontology and Process Mining -- A Case Study of Business Process Simulation in the Context of Enterprise Engineering -- On Complexity, Transformation and Modeling -- On the Role of Complexity for Guiding Enterprise Transformations -- On the Explanatory Capabilities of Enterprise Modeling Approaches -- A Non-arbitrary Method for Estimating IT Business Function Recovery Complexity via Software Complexity.