Optimizing the Supplier Selection and Service Portfolio of a SOA Service Integrator. - Jan Christian Lang; Thomas Widjaja; Peter Buxmann; Wolfgang Domschke; Thomas Hess (HICSS, 2008)

Value potential and challenges of service-oriented architectures - A user and vendor perspective. - Alexander Becker; Peter Buxmann; Thomas Widjaja (ECIS, 2009)

Service-oriented architectures: Modeling the selection of services and platforms. - Thomas Widjaja; Peter Buxmann (ECIS, 2009)

The Software Value Chain as an Analytical Framework for the Software Industry and Its Exemplary Application for Vertical Integration Measurement. - Anton Pussep; Markus Schief; Thomas Widjaja; Peter Buxmann; Christian M. Wolf (AMCIS, 2011)

Software ecosystems: vendor-sided characteristics of online marketplaces. - Christoph Burkard; Tobias Draisbach; Thomas Widjaja; Peter Buxmann (GI-Jahrestagung, 2011)

Value Potentials and Challenges of Service-Oriented Architectures - Results of an Empirical Survey from User and Vendor Perspective. - Alexander Becker; Thomas Widjaja; Peter Buxmann (Bus. Inf. Syst. Eng., 2011)

Nutzenpotenziale und Herausforderungen des Einsatzes von Serviceorientierten Architekturen - Ergebnisse einer empirischen Untersuchung aus Anwender- und Herstellersicht. - Alexander Becker; Thomas Widjaja; Peter Buxmann (Wirtschaftsinf., 2011)

Standardisierungsentscheidungen in mehrschichtigen Systemen: Untersuchung am Beispiel serviceorientierter Architekturen. - Thomas Widjaja (2011)

The Software Value Chain: Methods for Construction and their Application. - Anton Pussep; Markus Schief; Thomas Widjaja (ECIS, 2012)

Analyzing Client Dependence in Dyadic IS Outsourcing Relationships. - Jasmin Kaiser; Thomas Widjaja; Peter Buxmann (Global Sourcing Workshop, 2012)

Perceived IT Security Risks of Cloud Computing: Conceptualization and Scale Development. - Tobias Ackermann; Thomas Widjaja; Alexander Benlian; Peter Buxmann (ICIS, 2012)

Positioning Clients in Dyadic Dependence Structures of IS Outsourcing Relationships - Conceptualization and Empirical Findings. - Jasmin Kaiser; Thomas Widjaja; Peter Buxmann (ICIS, 2012)

Design Principles for Heterogeneity Decisions in Enterprise Architecture Management. - Thomas Widjaja; Robert Wayne Gregory (ICIS, 2012)

Heterogeneity in IT Landscapes and Monopoly Power of Firms: A Model to Quantify Heterogeneity. - Thomas Widjaja; Jasmin Kaiser; Dennis Tepel; Peter Buxmann (ICIS, 2012)

Lock-Ins auf Netzeffektmärkten - Ergebnisse einer Simulationsstudie. - Tobias Draisbach; Thomas Widjaja; Peter Buxmann (MKWI, 2012)

Software Ecosystems. - Christoph Burkard; Thomas Widjaja; Peter Buxmann (Bus. Inf. Syst. Eng., 2012)

Der "Preis des Kostenlosen". - Helena Wenninger; Thomas Widjaja; Peter Buxmann; Jin Gerlach (Wirtschaftsinformatik Manag., 2012)

Does This App Ask For Too Much Data? The Role Of Privacy Perceptions In User Behavior Towards Facebook Applications And Permission Dialogs. - Hanna Krasnova; Nicole Eling; Oleg Schneider; Helena Wenninger; Thomas Widjaja; Peter Buxmann (ECIS, 2013)

Complexity In Enterprise Architectures - Conceptualization And Introduction Of A Measure From A System Theoretic Perspective. - Alexander Schütz; Thomas Widjaja; Jasmin Kaiser (ECIS, 2013)

Messung der Komplexität von IT-Landschaften auf der Basis von Architektur-Metamodellen: Ein generischer Ansatz und dessen Anwendung im Rahmen der Architektur-Transformation. - Christian Schmidt 007; Thomas Widjaja; Alexander Schütz (GI-Jahrestagung, 2013)

Relative and Joint Dependence in IS Outsourcing Relationships - A Model of Effects on Relational Facets and Exchange Performance. - Jasmin Kaiser; Thomas Widjaja; Peter Buxmann (Global Sourcing Workshop, 2013)

Towards the Optimal Security Level: Quantification of Risks in Service-Based Information Systems. - Tobias Ackermann; Thomas Widjaja; Peter Buxmann (HICSS, 2013)

Lock-Ins in Network Effect Markets - Results of a Simulation Study. - Tobias Draisbach; Thomas Widjaja; Peter Buxmann (HICSS, 2013)

A Two-Sided Perspective on Supplier Dependence in IS Outsourcing Dyads. - Jasmin Kaiser; Thomas Widjaja; Peter Buxmann (HICSS, 2013)

Will You Accept an App? Empirical Investigation of the Decisional Calculus Behind the Adoption of Applications on Facebook. - Nicole Eling; Hanna Krasnova; Thomas Widjaja; Peter Buxmann (ICIS, 2013)

Unfolding Dyadic Dependencies in IS Outsourcing Relationships - Development of Two Multidimensional Constructs. - Jasmin Kaiser; Thomas Widjaja; Peter Buxmann (ICIS, 2013)

Cloud Computing Providers' Unrealistic Optimism regarding IT Security Risks: A Threat to Users? - André Loske; Thomas Widjaja; Peter Buxmann (ICIS, 2013)

Escape from Winchester Mansion - Toward a Set of Design Principles to Master Complexity in IT Architectures. - Alexander Schütz; Thomas Widjaja; Robert Wayne Gregory (ICIS, 2013)

Envy on Facebook: A Hidden Threat to Users' Life Satisfaction? - Hanna Krasnova; Helena Wenninger; Thomas Widjaja; Peter Buxmann (Wirtschaftsinformatik, 2013)

Unrealistischer Optimismus der Cloud Computing Anbieter bezüglich IT Sicherheitsrisiken - Eine Bedrohung für die Nutzer? - André Loske; Thomas Widjaja; Peter Buxmann (Wirtschaftsinformatik, 2013)

OREX-J: towards a universal software framework for the experimental analysis of optimization algorithms. - Jan Christian Lang; Thomas Widjaja (OR Spectr., 2013)

Perceived IT Security Risks in Cloud Adoption: the Role of Perceptual Incongruence between Users and Providers. - André Loske; Thomas Widjaja; Alexander Benlian; Peter Buxmann (ECIS, 2014)

Der kostenoptimale Grad funktionaler Redundanz in IT-Anwendungslandschaften. - Thomas Widjaja (GI-Jahrestagung, 2014)

Research Note - Why Following Friends Can Hurt You: An Exploratory Investigation of the Effects of Envy on Social Networking Sites among College-Age Users. - Hanna Krasnova; Thomas Widjaja; Peter Buxmann; Helena Wenninger; Izak Benbasat (Inf. Syst. Res., 2015)

Handle with care: How online social network providers' privacy policies impact users' information sharing behavior. - Jin Gerlach; Thomas Widjaja; Peter Buxmann (J. Strateg. Inf. Syst., 2015)

Calculating with Different Goals in Mind - the Moderating Role of the regulatory Focus in the Privacy Calculus. - Hendrik Brakemeier; Thomas Widjaja; Peter Buxmann (ECIS, 2016)

Distinguishing Usage and Disclosure Intentions in Privacy Research: How our two Selves Bring about differences in the effects of Benefits and Risks. - Hendrik Brakemeier; Thomas Widjaja; Peter Buxmann (ECIS, 2016)

Understanding the Anatomy of Data-Driven Business Models - towards an Empirical Taxonomy. - Adrian Engelbrecht; Jin Gerlach; Thomas Widjaja (ECIS, 2016)

Understanding Privacy Risk Perceptions of Consumer Health Wearables - An Empirical Taxonomy. - Moritz Becker; Christian Matt 001; Thomas Widjaja; Thomas Hess (ICIS, 2017)

The Nature of Enterprise-Service-Fit in the Context of Digital Services. - Adrian Engelbrecht; Jin P. Gerlach; Thomas Widjaja; Peter Buxmann (ICIS, 2017)

IT-Management und IT-Strategie. - Susanne Strahringer; Thomas Widjaja (HMD Prax. Wirtsch., 2017)

The Effect of Service Modularity on Flexibility in the Digital Age - An Investigation in the B2B Context. - Torben Stoffer; Thomas Widjaja; Nicolas Zacharias (IESS, 2018)

The Diverging Effect of Digitalization on Perceived Relational Conflict during Service Provisions " An Empirical Comparison of Suppliers and Customers in the B2B Context. - Torben Stoffer; Thomas Widjaja; Nicolas Zacharias (ICIS, 2018)

Tensions in Digital Platform Business Models: A Literature Review. - Tobias Mini; Thomas Widjaja (ICIS, 2019)

An Exploratory Study of Risk Perception for Data Disclosure to a Network of Firms. - Tobias Steudner; Thomas Widjaja; Jan H. Schumann (Wirtschaftsinformatik, 2019)

Monitoring the Complexity of IT Architectures: Design Principles and an IT Artifact. - Thomas Widjaja; Robert Wayne Gregory (J. Assoc. Inf. Syst., 2020)

An Exploration of Governing via IT in Decentralized Autonomous Organizations. - Tobias Mini; Eleunthia Wong Ellinger; Robert Wayne Gregory; Thomas Widjaja (ICIS, 2021)

A Taxonomy of Forks in the Context of Decentralized Autonomous Organizations. - Sebastian Overhage; Thomas Widjaja (ECIS, 2022)

Transparency in the Privacy Context: A Structured Literature Review. - Philipp Sleziona; Thomas Widjaja (ECIS, 2022)

Framing as an App-Design Measure to Nudge Users Toward Infection Disclosure in Contact-Tracing Applications. - Abdul Muqeet Ghaffar; Thomas Widjaja (ECIS, 2023)

The effect of regulatory Measures on Individual Data Disclosure: a Country Comparison. - Martin Richthammer; Thomas Widjaja (ECIS, 2023)

Towards a Theory to Explain Prosocial Data Disclosure - An Explorative Investigation of the Antecedents of Infection Disclosure. - Abdul Muqeet Ghaffar; Thomas Widjaja (ICIS, 2023)

Towards a Theory to Explain the Effect of Uncertainty on Prosocial Data Disclosure. - Abdul Muqeet Ghaffar; Thomas Widjaja; Hanna Roider (ICIS, 2023)

Assuring or Enabling Privacy? - How Different Types of Regulatory Measures for Data Privacy Affect Individual Disclosure Behavior. - Martin Richthammer; Thomas Widjaja (ECIS, 2024)

Uncovering Privacy in the Metaverse from an Identity Perspective: A Literature Review. - Hanna Roider; Thomas Widjaja (ICIS, 2024)

Skin in the Game: The Transformational Potential of Decentralized Autonomous Organizations. - Eleunthia Wong Ellinger; Robert Wayne Gregory; Tobias Mini; Thomas Widjaja; Ola Henfridsson (MIS Q., 2024)