On the Use of Feature Models for Service Design: The Case of Value Representation. - Erik Wittern; Christian Zirpins (ServiceWave Workshops, 2010)

A Tool Suite to Model Service Variability and Resolve It Based on Stakeholder Preferences. - Erik Wittern; Christian Zirpins; Nidhi Rajshree; Anshu N. Jain; Ilias Spais; Konstantinos Giannakakis (ICSOC Workshops, 2011)

Validating Service Value Propositions Regarding Stakeholder Preferences. - Erik Wittern; Christian Zirpins (ICST Workshops, 2011)

Cloud Service Selection Based on Variability Modeling. - Erik Wittern; Jörn Kuhlenkamp; Michael Menzel 002 (ICSOC, 2012)

Participatory Service Design through Composed and Coordinated Service Feature Models. - Erik Wittern; Nelly Schuster; Jörn Kuhlenkamp; Stefan Tai (ICSOC, 2012)

Pattern-based process discovery. - Robin Fischer; Erik Wittern; Julian Schneider; Stefan Tai (SOCA, 2012)

Citizens Collaboration and Co-Creation in Public Service Delivery: The COCKPIT Project. - Panagiotis Kokkinakos; Sotirios Koussouris; Dimitrios Panopoulos; Dimitris Askounis; Antonis Ramfos; Christos Georgousopoulos; Erik Wittern (Int. J. Electron. Gov. Res., 2012)

A Service Delivery Framework to Support Opportunistic Collaborations. - Gregory Katsaros; Erik Wittern; Birgit Gray; Stefan Tai (ESOCC, 2013)

A Life-Cycle Model for Software Service Engineering. - Erik Wittern; Robin Fischer (ESOCC, 2013)

Feature-Based Configuration of Vendor-Independent Deployments on IaaS. - Erik Wittern; Alexander Lenk; Sebastian Bartenbach; Tobias Braeuer (EDOC, 2014)

A Graph-Based Data Model for API Ecosystem Insights. - Erik Wittern; Jim Laredo; Maja Vukovic; Vinod Muthusamy; Aleksander Slominski (ICWS, 2014)

Inferring Web API Descriptions from Usage Data. - Philippe Suter; Erik Wittern (HotWeb, 2015)

Modeling and Selection of Software Service Variants. - Erik Wittern (2015)

Benchmarking Web API Quality. - David Bermbach; Erik Wittern (ICWE, 2016)

A look at the dynamics of the JavaScript package ecosystem. - Erik Wittern; Philippe Suter; Shriram Rajagopalan (MSR, 2016)

API Harmony: Graph-based search and selection of APIs in the cloud. - Erik Wittern; Vinod Muthusamy; Jim Laredo; Maja Vukovic; Aleksander Slominski; Shriram Rajagopalan; Hani Jamjoom; Arjun Natarajan (IBM J. Res. Dev., 2016)

Service feature modeling: modeling and participatory ranking of service design alternatives. - Erik Wittern; Christian Zirpins (Softw. Syst. Model., 2016)

Cloud Service Benchmarking - Measuring Quality of Cloud Services from a Client Perspective - David Bermbach; Erik Wittern; Stefan Tai (Springer, 2017)

Statically checking web API requests in JavaScript. - Erik Wittern; Annie T. T. Ying; Yunhui Zheng; Julian Dolby; Jim Alain Laredo (ICSE, 2017)

Opportunities in Software Engineering Research for Web API Consumption. - Erik Wittern; Annie T. T. Ying; Yunhui Zheng; Jim Alain Laredo; Julian Dolby; Christopher C. Young; Aleksander Slominski (WAPI@ICSE, 2017)

Who you gonna call?: analyzing web requests in Android applications. - Marianna Rapoport; Philippe Suter; Erik Wittern; Ondrej Lhoták; Julian Dolby (MSR, 2017)

An empirical analysis of the Docker container ecosystem on GitHub. - Jürgen Cito; Gerald Schermann; Erik Wittern; Philipp Leitner 001; Sali Zumberi; Harald C. Gall (PeerJ Prepr., 2017)

Web APIs - Challenges, Design Points, and Research Opportunities: Invited Talk at the 2nd International Workshop on API Usage and Evolution (WAPI '18). - Erik Wittern (WAPI@ICSE, 2018)

Generating GraphQL-Wrappers for REST(-like) APIs. - Erik Wittern; Alan Cha; Jim Alain Laredo (ICWE, 2018)

Towards extracting web API specifications from documentation. - Jinqiu Yang 001; Erik Wittern; Annie T. T. Ying; Julian Dolby; Lin Tan 001 (MSR, 2018)

Automatically Extracting Web API Specifications from HTML Documentation. - Jinqiu Yang 001; Erik Wittern; Annie T. T. Ying; Julian Dolby; Lin Tan 001 (CoRR, 2018)

An Empirical Study of GraphQL Schemas. - Erik Wittern; Alan Cha; James C. Davis 001; Guillaume Baudart; Louis Mandel (ICSOC, 2019)

Benchmarking Web API Quality - Revisited. - David Bermbach; Erik Wittern (CoRR, 2019)

A mixed-method empirical study of Function-as-a-Service software development in industrial practice. - Philipp Leitner 001; Erik Wittern; Josef Spillner; Waldemar Hummer (J. Syst. Softw., 2019)

Topology-Aware Continuous Experimentation in Microservice-Based Applications. - Gerald Schermann; Fábio Oliveira; Erik Wittern; Philipp Leitner 001 (ICSOC, 2020)

Benchmarking microservice performance: a pattern-based approach. - Martin Grambow; Lukas Meusel; Erik Wittern; David Bermbach (SAC, 2020)

A principled approach to GraphQL query cost analysis. - Alan Cha; Erik Wittern; Guillaume Baudart; James C. Davis 001; Louis Mandel; Jim Alain Laredo (ESEC/SIGSOFT FSE, 2020)

Emerging Trends, Challenges, and Experiences in DevOps and Microservice APIs. - Uwe Zdun; Erik Wittern; Philipp Leitner 001 (IEEE Softw., 2020)

Learning GraphQL Query Cost. - Georgios Mavroudeas; Guillaume Baudart; Alan Cha; Martin Hirzel; Jim Alain Laredo; Malik Magdon-Ismail; Louis Mandel; Erik Wittern (ASE, 2021)

Learning GraphQL Query Costs (Extended Version). - Georgios Mavroudeas; Guillaume Baudart; Alan Cha; Martin Hirzel; Jim Alain Laredo; Malik Magdon-Ismail; Louis Mandel; Erik Wittern (CoRR, 2021)