The Internet’s emergence has significantly changed how people, communities, and societies behave, interact, and live. Today, people are accustomed to fulfilling their needs by taking advantage of giant online places for, e.g., the exchange of goods, video streaming, or social interaction. A driving force within this powerful development is represented by the growing diffusion of digital technologies. Enabled by technological advances, nearly every artifact is or can be equipped with digital technologies. With the increasing digitization and hybridization of physical objects established innovation and value commercialization logics are brought into question. Recapitulating today’s prominent players, such as Amazon, Facebook, Apple, etc., highlights the emergence of a new ecosystem philosophy in practice in which diverse third-party contributors are orchestrated via a digital platform and carefully considered in the core firms’ innovation activities. To shed light on this complex phenomena, this dissertation explores, first, the ecosystem concept and its particular relation to information systems, second, investigates the specific situation of industrial-age manufacturing contexts characterized by a physical core product that cannot be digitally substituted and, third, focusses on the specific nature of digital platform ecosystems to distill respective dimensions and characteristics.

Im Zeitalter der Digitalisierung müssen Unternehmen ihre Prozesse, Produkte und Geschäftsmodelle anpassen, um ihre Innovations- sowie Wettbewerbsfähigkeit aufrecht zu erhalten. Aufgrund dessen müssen Unternehmen ihre bestehenden Kompetenzen erneuern, indem sie neues Wissen aus der digitalen Sphäre wertstiftend integrieren. Dies stellt jedoch eine erhebliche Herausforderung dar, insbesondere für etablierte Unternehmen, da die konvergente und generative Natur der digitalen Innovation nicht nur den Prozess der Wissensintegration dynamischer macht, sondern auch die Vielfalt und Menge des Wissens erhöht, das über die Unternehmensgrenzen hinweg integriert werden muss. Um diese Herausforderung näher zu beleuchten und Lösungsansätze zu evaluieren, wurden vier Studien durchgeführt und in dieser kumulativen Dissertation zusammengestellt. Diese Studien geben Einblicke in die Besonderheiten der Wissensintegration im Kontext digitaler Innovationen und fördern das Verständnis dafür, wie etablierte Unternehmen die damit verbundenen Herausforderungen bewältigen können. Dabei wird insbesondere der Einsatz von Grenzressourcen, wie bspw. Programmierschnittstellen (APIs), untersucht, da sie einen wesentlichen Mechanismus zur Skalierung der Wissensintegration in digital(isierenden) Geschäftsökosystemen darstellen. In the age of digitalization, companies need to adapt their processes, products, and business models to maintain their capability to innovate and thus to ensure their competitiveness. As a result, companies need to renew their existing competencies by integrating new and valuable knowledge from the digital sphere. However, this poses a significant managerial challenge, especially for established companies, as the convergent and generative nature of digital innovation not only makes the process of knowledge integration more dynamic, but also increases the diversity and amount of knowledge that needs to be integrated across organizational boundaries. To shed more light on this challenge and evaluate possible solutions, four studies were conducted and compiled in this cumulative dissertation. These studies provide insights into the unique nature of knowledge integration in the context of digital innovation and advance the understanding of how incumbent firms can address the associated challenges. In particular, the use of boundary resources such as application programming interfaces (APIs) is examined, as they represent a key mechanism for scaling knowledge integration in digital(izing) business ecosystems.

Smart sustainable mobility ecosystems promise to address society’s expectation of environmentally friendly on-demand mobility. While the technology stack to build such ecosystems is just around the corner in the form of connected, automated, and electric vehicles, strategies to deploy and operate such fleets in a coordinated manner must still be advanced. Most of such optimization challenges highly depend on the nature of customer demand, vehicle supply, and environmental influences. Hence, this dissertation investigates how available data streams from mobility ecosystems can be leveraged in Information Systems to solve related decision problems. The overarching goal of this work is to generate design knowledge to improve vehicle availability, provider profitability, and environmental sustainability for such ecosystems. Applying quantitative methods to real-world data from shared vehicle systems generates insights into the nature of demand and supply. Combining it with an analysis of empirical research on vehicle relocation algorithms builds the foundation for two artifact designs. The first artifact enables the development and simulation-based evaluation of operation modes for vehicle fleets. The second artifact enables artificial intelligence-based decision support for the vehicle rebalancing problem. The insights are finally incorporated and generalized to a nascent design theory on data-enabled operational decision-making in the context of smart sustainable mobility environments. The findings have multifaceted implications for researchers concerned with data-enabled value creation in Green IS, shared economy and smart mobility, and business analytics and data science. Furthermore, guidance for fleet providers to improve system attractiveness and for society to experience the potential amount of vehicle access without personal ownership is provided.

The widespread diffusion of digital, connected objects such as smartphones or tablets as well as the increasing integration of computing and connectivity capabilities into everyday artifacts like TVs and cars have significantly changed individual behavior in recent decades: it has become the norm to interact with technology and to be connected with online resources regardless of time and place. Social interactions have increasingly become intertwined with technology, making it almost impossible to fully participate in everyday life activities without IT. As a final example, with the integration of network connectivity, digital technologies, products, and services are not used in isolation anymore, but working together as assemblages, thereby expanding the range of what they and their users can do. Overall, we have witnessed that IT has become deeply socially embedded in everyday life and routines. Understanding individual behavior has a long tradition in information systems research. However, given the fundamental changes in recent years related to technology use, it is questionable whether traditional models and theories are still applicable in the digital age. The goal of this dissertation is to address respective shortcomings. As a first step, a comprehensive review of the literature on digital transformation is performed for a better understanding of this phenomenon surrounding the changes we have witnessed regarding individual behavior. Afterwards, new concepts to explain and measure individual behavior and expectations related to connected objects are developed and examined. Furthermore, as the topic of connected objects is closely connected to the concept of personalization, a design study is performed that 1) provides an artifact to handle the efficiency-personalization trade-off in the provision of firm offerings and 2) illustrates how personalization influences the user perceptions of respective products and services. Based on the findings, a framework for the study of connected objects is synthesized and presented. Overall, the findings of this dissertation have relevant implications for research and practice in the fields of technology acceptance, digital life, and digital transformation.

This thesis is focusing on three little-explored contextual conditions that are important for a better understanding of digital platform ecosystems: digital platforms in a nascent stage of maturity, digital platforms built by incumbents, and digital platforms embedded in the IoT phenomenon. Thus, the thesis contributes to the question of how established companies navigating nascent digital platform ecosystems in the IoT. The work builds and contributes to the literature on digital platform ecosystems. Three main contributions are made through explorative qualitative research in the form of Delphi and case studies as well as through systematic literature research on the above-mentioned themes: First, the thesis synthesizes important knowledge about the nascent stage of digital platform ecosystems and identifies value co-creation challenges specific to this early maturity stage. Second, given the increasing importance of established companies in the platform discourse, this thesis identifies the intra- and inter-organizational challenges that incumbent organizations face in building digital platform ecosystems, emphasizing the importance of the organizational type in building a platform ecosystem. Third, the dissertation positions platforms in the IoT as a new digital platform instantiation within the scholarly platform discourse and outlines important phoneme-related characteristics that determine value creation.

Conversational Agents (CAs) are changing the way people interact in their daily lives. Specifically, CAs such as chatbots or voice assistants are increasingly covering services traditionally provided by human employees. CA-based services are available at any time and in any capacity, providing convenience and comfort while overcoming the limitations of human employees. However, many CAs are imperfect and prone to errors, such as frequently misinterpreting users’ requests, which leads to a mismatch between the expectations of the service and the service provided. As a result, some CA-based services have been discontinued in the past. In this context, a human-like design of CAs potentially offers a valuable approach to enhancing the user’s perception of a service. Prior research shows that this leads to individuals interacting with a human-like CA as if they would interact with a real individual. Furthermore, human-like errors could be considered a social cue, since it is human nature to make errors. To address the overall research area of CAs imperfections, four studies were conducted and synthesized in this dissertation. The studies provide novel insights into the design of human-like text-based CAs interrelated with the occurrence of CA imperfections, including human-like errors. Through a set of experiments, four major contributions are provided. First, the human-like design of imperfect CAs can mitigate the negative individuals’ perceptions, if implemented carefully. Second, the human-like design of imperfect CAs can shift individuals into a positive emotional state which increases service satisfaction. Third, human-like errors are not perceived as human-like and should not be employed in CA-based service encounters at present. Fourth, not every CA-based service requires a high level of human-like design, as the expectations of a CA-based service may be as different as the expectations of traditional human-based services.

In an ever more digitized world, it necessary to embed digital technology in business strategy, leading to an overarching phenomenon called the digital business strategy. Accordingly, this thesis sets out to advance the understanding, the digital business strategy concept in general as well as its influence on a company’s performance. At the same time, incumbents are often constrained by path dependencies and inertia as executives tend to make use of prior experiences and favor strategic choices they are familiar with over unfamiliar As a consequence, companies may stick to a specific path which restrains transformational change. Accordingly, the study elucidates the ongoing digital transformation as it manifests itself in the evolution of incumbents’ digital business strategies. In addition, this thesis seeks to derive important implications for business practice, as it helps practitioners to develop a better understanding of digital business strategies, especially considering that digitalization challenges the conventional wisdom of competition. This is particularly important, as with increasing digitalization, tightly integrated digital business strategies will be among the biggest determinants of a company’s future success. In einer immer stärker digitalisierten Welt ist es wichtig digitale Technologien in die Geschäftsstrategie eines Unternehmens einzubetten, was zu einem übergreifenden Phänomen führt, das als digitale Geschäftsstrategie bezeichnet wird. Dementsprechend zielt diese Arbeit darauf ab, das Verständnis des Konzepts der digitalen Geschäftsstrategie im Allgemeinen sowie dessen Einfluss auf die Performance eines Unternehmens zu verbessern. Gleichzeitig sind etablierte Unternehmen oft durch Pfadabhängigkeiten und Trägheit eingeschränkt, da Führungskräfte dazu neigen, auf frühere Erfahrungen zurückzugreifen und strategische Entscheidungen, mit denen sie vertraut sind, gegenüber unbekannten Optionen zu bevorzugen In der Folge verharren Unternehmen auf einem bestimmten strategischen Pfad, was transformatorischen Wandel hemmt. Dementsprechend beleuchtet die Studie die laufende digitale Transformation und wie diese sich in der Entwicklung der digitalen Geschäftsstrategien etablierter Unternehmen manifestiert. Darüber hinaus versucht diese Arbeit, wichtige Implikationen für die Unternehmenspraxis abzuleiten, da sie Praktikern hilft, ein besseres Verständnis für digitale Geschäftsstrategien zu entwickeln, insbesondere in Anbetracht der Tatsache, dass die Digitalisierung die konventionelle Weisheit des Wettbewerbs herausfordert. Dies ist besonders wichtig, da mit zunehmender Digitalisierung eng integrierte digitale Geschäftsstrategien zu den größten Determinanten für den zukünftigen Erfolg eines Unternehmens gehören werden.