This book constitutes revised papers from the seven workshops and one accompanying event which took place at the 21st International Conference on Business Information Systems, BIS 2018, held in Berlin, Germany, in July 2018. Overall across all workshops, 58 out of 122 papers were accepted.The workshops included in this volume are:

Keynote Speech.- Business information systems for the cost/energy management of water distribution networks: a critical appraisal of alternative optimization strategies.- AKTB Workshop.- Enhancing clinical decision support through information processing capabilities and strategic IT alignment.- Ontology-Based Fragmented Company Knowledge Integration: Possible Approaches.- Enhancing Teamwork Behavior of Services.- Business Rule Optimisation: Problem Definition, Proof-of-Concept and Application Areas.- Profiling User Colour Preferences with BFI-44 Personality Traits.- The benefits of modeling software-related exceptional paths of business processes.- Process Mining of Periodic Rating Scale Survey Data using Analytic Hierarchy Process.- BITA Workshop.- Determinants to Benefit from Enterprise Architecture Management - A Research Model.- Business and Information Technology Alignment Measurement - a recent Literature Review.- Using Business Process Modelling to Improve Student Recruitment in UK Higher Education.- Stakeholder-Oriented and Enterprise Architecture Driven Cloud Service Selection.- Business-IT alignment improvement in co-creation value networks: design of a reference model-based support.- Ontology Development Strategies in Industrial Contexts.- BSCT Workshop.- Blockchain Backed DNSSEC.- The Proposal of a Blockchain-based Architecture for Transparent Certificate Handling.- Blockchain-based Distributed Marketplace.- BlockChain based certificate verification platform.- Blockchain-Based Management of Shared Energy Assets Using a Smart Contract Ecosystem.- Research of Ethereum Mining Hash Rate Dependency on GPU Hardware Settings.- Practical deployability of Permissioned Blockchains.- Decentralized Energy Networks based on Blockchain: Background, Overview and Concept Discussion.- Enabling Data Markets using Smart Contracts and Multi-Party Computation.- Opportunities, Challenges, and Future Extensions for Smart-Contract Design Patterns.- A Multichain Architecture for Distributed Supply Chain Design in Industry 4.0.- Invisible BlockChain and Plasticity of Money - Adam Smith Meets Darwin to Buy Crypto Currency.- Blockchain-based internet voting: systems' compliance with international standards.- Chaining Property to Blocks - On the Economic Efficiency of Blockchain-Based Property Enforcement.- On The Future Of Markets Driven by Blockchain.- Smart Contract-Based Role Management on the Blockchain.- Industrial Socio-Cyberphysical System's Consumables Tokenization for Smart Contracts in Blockchain.- SmartExchange: Decentralised Trustless Cryptocurrency Exchange.- A Public, Blockchain-Based Distributed Smart-Contract Platform Enabling Mobile Lite Wallets Using a Proof-of-Stake Consensus Algorithm.- Risk Engineering and Blockchain: Anticipating and Mitigating Risks.- IDEA Workshop.- IT infrastructure capability and health information exchange: The moderating role of electronic medical records' reach.- The IT department as a service broker: a qualitative research.- Foster strategic Orientation in the Digital Age.- TEA - A Technology Evaluation and Adoption Influence Framework for small and medium sized enterprises.- IDEATE Workshop.- Prescriptive Analytics: A Survey of Approaches and Methods.- Challenges from data-driven predictive maintenance in brownfield industrial settings.- Big Data Is Power Business Value From a Process Oriented Analytics Capability.- Scibo Water Workshop.- A multiple-layer clustering method for real-time decision support in a water distribution system.- Automated updating of land cover maps used in hydrological modeling.- High-performance computing applied in project UBEST.- A Comparative Study on Decision Support Approaches under Uncertainty.- Plastic Grabber: Underwater Autonomous Vehicle Simulation for Plastic Objects Retrieval Using Genetic Programming.- Adaptation of irrigation systems to current climate changes.- QOD Workshop.- ADEQUATe: A Community-driven Approach to Improve Open Data Quality.-Situation-dependent data quality analysis for geospatial data using Semantic technologies.- Indicating Studies' Quality based on Open Data in Digital Libraries.- Syntactical Heuristics for the Open Data Quality Assessment and their applications.- Access Control and Quality Attributes of Open Data: Applications and Techniques.- Doctoral Consortium.- Measures for Quality Assessment of Articles and Infoboxes in Multilingual Wikipedia.- Supply chain modelling using Data Science.- Behavioral biometrics in mobile banking and payment applications.- Modelling of Risk and Reliability of Maritime Transport Services.- Mixed Methods approach as requirements analysis of a method for process harmonization in Design Science Research.- Predicting Customer Churn in Electronic Banking.- Assessing Process Suitability for AI-based Automation. Research Idea and Design.