Selected Topics on Business Information Systems Research: Editorial Introduction to Issue 26 of CSIMQ

Business Information Systems research deals with the conceptualization, development, introduction, maintenance and utilization of systems for computer-assisted information processing within companies and enterprise-wide networks [1, p.1]. This CSIMQ issue contains five articles that deal with various information system (IS) issues, including IS security, product-related ISs, blockchain technology and sensor technology. The call for this issue was particularly targeted towards extended articles of two workshops that were held in conjunction with the 13th IFIP WG 8.1 working conference on the Practice of Enterprise Modelling. The first is the BES 2020 workshop (i.e., 1st Workshop on Blockchain and Enterprise Systems), which has the ambition to change the way one thinks, designs and implements ISs. The second one is ManComp 2020 (i.e., 5th Workshop on Managed Complexity), which is focused on approaches and methods for managing the complexity of ISs and IS interaction within ecosystems. • The first article is written by Julia Kaidalova, Kurt Sandkuhl and Ulf Seigerroth and is titled Product-IT inclusive Enterprise ArchitectureManagement: An Approach based on Ecosystems, Customer Journey and Data-driven Business Opportunities. This article is focused on IS components that are integrated into smart connected products, which are used by an enterprise for value creation and delivery. The contribution of the article is methodological support for integrating those smart products within Enterprise Architecture. The contribution is based on TOGAF and ArchiMate, which are two standards in the Enterprise Architecture field. • The second is authored by Anne Sofie Vingerhoets, Samedi Heng and Yves Wautelet and is titled Using i* and UML for Blockchain Oriented Software Engineering: Strengths, Weaknesses, Lacks and Complementarity. This contribution is an extended BES 2020workshop paper that studies how i* and UML can be used to document a blockchain development project in Supply Chain Management. These models are applied in the context of a real-life case study called ‘Farm-to-Fork’ where a blockchain solution for the supply chain of farm animals is developed. This enables to compare the strengths and weaknesses of the languages used. • The third contribution is a short article that is written by Johannes Rude Jensen, Victor von Wachter and Omri Ross and is titled An Introduction to Decentralized Finance (DeFi). This