This book contains revised papers from the three workshops and two accompanying events that took place at the 20th International Conference on Business Information Systems, BIS 2017, held in Poznan, Poland, in June 2017.

AKTB Workshop.- A Framework for Optimising Business Rules.- DA Social Recommendation Mechanism for Crowdfunding.- Principal Sources for the Identification of Tacit Knowledge within an IT Company, as Part of an Intelligent System.- Sentiment-Analysis for German Employer Reviews.- Product Knowledge Management Support for Customer-Oriented System Configuration.-Transformation Algorithms of Knowledge Based UML Dynamic Models Generation.- Analysis of Users Buying Behaviour to Improve the Coupon Marketing.- Identifying Lithuanian native speakers using voice recognition.- Dereferencing service for navigating enterprise knowledge structures from diagrammatic representations.- DEA based algorithm for EU Healthcare Efficiency Evaluation.- BITA Workshop.- The effect of strategic alignment of complementary IT and organizational capabilities on competitive firm performance.- Two Stage Business and IT-Alignment: Initial Experiences from Portal Implementation for Non-Traditional Study Formats of a University.- The Impact of Digitization on Information System Design – An Explorative Case Study of Digitization in the Insurance Business.- Evaluation of Application Architecture Change Cases: Building Blocks Reusability Assessment Method.- Triple-Agile: A Paradigm for Cloud based SME Process Support.- SESSISE Workshop Human-Computer Cloud for Smart Cities: Tourist Itinerary Planning Case Study.- On Battery Management Strategies in Multi-Agent Microgrid Management.- Doctoral Consortium.- Continuous Requirements Engineering Support Environment Model in Methodologically Heterogeneous Projects.- Enrichment of information in multilingual Wikipedia based on quality analysis.- Hazard Index for Assessment of Reliability of Supply and Risk in Maritime Domain.- Behavioural profiling authentication based on trajectory based anomaly detection model of user's mobility.- Social media - profiling users movement trajectory and visited places.- 2nd National Congress on Information Systems.- Classification and preprocessing in the stock data.- Relative quality assessment of Wikipedia articles in different languages using synthetic measure.- The Evolution of Business Information Systems and the BIS Completeness and Reliability of Wikipedia Infoboxes in Various Languages.

This book constitutes revised papers from the three workshops and two accompanying events which took place at the 20th International Conference on Business Information Systems, BIS 2017, held in Poznań, Poland, in June 2017. The workshops included in this volume are: * The 9th Workshop on Applications of Knowledge-Based Technologies in Business – AKTB 2017 accepted 9 papers from 16 submissions and features 1 invited paper. * The 8th Workshop on Business and IT Alignment - BITA 2016 selected 5 papers from 10 submissions. * The 1st Workshop on Sustainable Energy Systems, Smart Infrastructures, and Smart Environments – SESSISE 2017 selected 2 papers for inclusion in this book. In addition, BIS hosted a Doctoral Consortium of which 5 papers are included. Furthermore, two contributions from the Second National Congress on Information Systems, that took place during BIS, are included. The volume ends with an invited paper presented during a special session of the main BIS conference.