Software Architecture

Univ.-Prof. Dr. Uwe Zdun

Research Group Software Architecture

Head

Währinger Straße 29
1090 Wien
Room : 5.29

T: +43-1-4277-78510

uwe.zdun(at)univie.ac.at

Personal homepage

u:cris portal

Courses

Publications

MLOps pipeline generation for reinforcement learning: A low-code approach using large language models. / Warnett, Stephen John ; Ntentos, Evangelos ; Zdun, Uwe.
In: Journal of Systems and Software, Vol. 235, 112760, 05.2026.

Publications: Contribution to journal › Article › Peer Reviewed

doi.org/10.1016/j.jss.2025.112760

Using Guided Community Detection to Improve Existing Microservice Designs. / Genfer, Patric (Corresponding author); Zdun, Uwe.
Service-Oriented Computing - 23rd International Conference, ICSOC 2025, Proceedings: 23rd International Conference, ICSOC 2025, Shenzhen, China, December 1–4, 2025, Proceedings, Part I. ed. / Marco Aiello; Ilche Georgievski; Shuiguang Deng; Juan-Manuel Murillo; Boualem Benatallah; Zhongjie Wang. Springer Singapore, 2026. p. 205-220 (Lecture Notes in Computer Science, Vol. 16320).

Publications: Contribution to book › Contribution to proceedings › Peer Reviewed

Architectural Design Decisions and Best Practices for Fast and Efficient CI/CD Pipelines. / Urdih, Francesco (Corresponding author); Theodoropoulos, Theodoros ; Zdun, Uwe.
Software Architecture: 19th European Conference, ECSA 2025, Limassol, Cyprus, September 15–19, 2025, Proceedings. ed. / Vasilios Andrikopoulos; Cesare Pautasso; Nour Ali; Jacopo Soldani; Xiwei Xu. Springer Nature, 2026. p. 297-305 (Lecture Notes in Computer Science, Vol. 15929).

Publications: Contribution to book › Contribution to proceedings › Peer Reviewed

Automatic Rule Checking for Microservices: Supporting Security Analysis with Explainability. / Schneider, Simon; Quéval, Pierre-Jean; Milánkovich, Ákos et al.
In: ACM Transactions on Software Engineering and Methodology, 09.10.2025.

Publications: Contribution to journal › Article › Peer Reviewed

doi.org/10.1145/3771275

EDSVM: A Novel Approach for Environment Drift Detection in Reinforcement Learning Using Synthetic Drifted Examples. / Fang, Zhizhou ; Zdun, Uwe.
ECAI 2025: 28th European Conference on Artificial Intelligence, 25-30 October 2025, Bologna, Italy – Including 14th Conference on Prestigious Applications of Intelligent Systems (PAIS 2025), Proceedings. ed. / Ines Lynce; Nello Murano; Mauro Vallati; Serena Villata; Federico Chesani; Michela Milano; Andrea Omicini; Mehdi Dastani. IOS Press, 2025. p. 2410-2417 (Frontiers in Artificial Intelligence and Applications, Vol. 413).

Publications: Contribution to book › Contribution to proceedings › Peer Reviewed

Design Decisions for Architecting Digital Twins of Microservices-based Systems. / Macías, Aurora; Ntentos, Evangelos ; Zdun, Uwe et al.
Software Engineering and Advanced Applications - 51st Euromicro Conference, SEAA 2025, Proceedings: 51st Euromicro Conference, SEAA 2025, Salerno, Italy, September 10–12, 2025, Proceedings, Part III. ed. / Davide Taibi; Darja Smite. Springer Nature, 2025. p. 428-446 (Lecture Notes in Computer Science, Vol. 16083).

Publications: Contribution to book › Contribution to proceedings › Peer Reviewed

AI-Powered Architecting for Industry 4.0 Cyber-Physical Production Systems: A Novel Approach, Research Problems and Challenges. / Warnett, Stephen J. (Corresponding author); Zdun, Uwe.
Software Architecture. ECSA 2025 Tracks and Workshops: Limassol, Cyprus, September 15–19, 2025, Proceedings. ed. / Domenico Bianculli; Hassan Sartaj; Vasilios Andrikopoulos; Cesare Pautasso; Tommi Mikkonen; Jennifer Perez; Tomáš Bureš; Martina De Sanctis; Henry Muccini; Elena Navarro; Mohamed Soliman; Uwe Zdun. Springer Nature, 2025. p. 155-168 (Lecture Notes in Computer Science, Vol. 15982).

Publications: Contribution to book › Contribution to proceedings › Peer Reviewed

ML Pipeline Insights Service for Rule-Based Assessment of Training Practices in Reinforcement Learning. / Ntentos, Evangelos ; Urdih, Francesco ; Zdun, Uwe.
Software Engineering and Advanced Applications: 51st Euromicro Conference, SEAA 2025, Salerno, Italy, September 10–12, 2025, Proceedings, Part I. Springer Nature, 2025. p. 148-163 (Lecture Notes in Computer Science, Vol. 16081).

Publications: Contribution to book › Contribution to proceedings › Peer Reviewed

Software Architecture. ECSA 2025 Tracks and Workshops: Limassol, Cyprus, September 15-19, 2025, Proceedings. / Bianculli, Domenico (Editor); Sartaj, Hassan (Editor); Andrikopoulos, Vasilios (Editor) et al.
Springer Nature, 2025. 390 p. (Lecture Notes in Computer Science, Vol. 15982).

Publications: Book › Proceedings › Peer Reviewed

doi.org/10.1007/978-3-032-04403-7

On the understandability of coupling-related practices in infrastructure-as-code based deployments. / Quéval, Pierre-Jean ; Hörner, Nicole Elisabeth ; Ntentos, Evangelos et al.
In: Information and Software Technology, Vol. 185, 107761, 09.2025.

Publications: Contribution to journal › Article › Peer Reviewed

Understanding security tactics in microservice APIs using annotated software architecture decomposition models - A controlled experiment. / Genfer, Patric; Serbout, Souhaila; Simhandl, Georg et al.
In: Empirical Software Engineering: an international journal, Vol. 30, No. 3, 66, 06.2025.

Publications: Contribution to journal › Article › Peer Reviewed

WEST GCN-LSTM: Weighted stacked spatio-temporal graph neural networks for regional traffic forecasting. / Theodoropoulos, Theodoros; Maroudis, Angelos-Christos; Zdun, Uwe et al.
In: International Journal of Information Management Data Insights, Vol. 5, No. 1, 100338, 06.2025.

Publications: Contribution to journal › Article › Peer Reviewed

GraphOpticon: A Global proactive horizontal autoscaler for improved service performance resource consumption. / Theodoropoulos, Theodoros; Patel, Yashwant Singh; Zdun, Uwe et al.
In: Future Generation Computer Systems: the international journal of grid computing, Vol. 174, 107926, 31.05.2025.

Publications: Contribution to journal › Article › Peer Reviewed

On the understandability of machine learning practices in deep learning and reinforcement learning based systems. / Ntentos, Evangelos ; Warnett, Stephen J.; Zdun, Uwe.
In: Journal of Systems and Software, Vol. 222, 112343, 04.2025.

Publications: Contribution to journal › Article › Peer Reviewed

Rule-Based Assessment of Reinforcement Learning Practices Using Large Language Models. / Ntentos, Evangelos ; Warnett, Stephen J.; Zdun, Uwe.
2025 IEEE/ACM 4th International Conference on AI Engineering - Software Engineering for AI (CAIN): Ottawa, Ontario, Canada 27–28 April 2025, Proceedings. IEEE, 2025. p. 1-11.

Publications: Contribution to book › Contribution to proceedings › Peer Reviewed

Transactions on Pattern Languages of Programming V. / Wallingford, Eugene (Editor); Zdun, Uwe (Editor); Kohls, Christian (Editor).
Berlin, Heidelberg: Springer Nature, 2025. 299 p. (Lecture Notes in Computer Science, Vol. 14630).

Publications: Book › Collection

doi.org/10.1007/978-3-662-70810-1

A model-driven, metrics-based approach to assessing support for quality aspects in MLOps system architectures. / Warnett, Stephen John ; Ntentos, Evangelos ; Zdun, Uwe.
In: Journal of Systems and Software, Vol. 220, 112257, 02.2025.

Publications: Contribution to journal › Article › Peer Reviewed

On the Understandability of Design-Level Security Practices in Infrastructure-as-Code Scripts and Deployment Architectures. / Ntentos, Evangelos ; Hörner, Nicole Elisabeth ; Simhandl, Georg et al.
In: ACM Transactions on Software Engineering and Methodology, Vol. 34, No. 1, 6, 21.01.2025, p. 1-37.

Publications: Contribution to journal › Article › Peer Reviewed

Bridging the Gap Between MLOps and RLOps: An Industry 4.0 Case Study on Architectural Design Decisions in Practice. / Warnett, Stephen J.; Zdun, Uwe.
2025 IEEE 22nd International Conference on Software Architecture (ICSA 2025): March 31 2025 to April 4 2025, Odense, Denmark, Proceedings. IEEE, 2025. p. 232-242.

Publications: Contribution to book › Contribution to proceedings › Peer Reviewed

Performance Patterns for CI/CD Pipelines. / Urdih, Francesco ; Theodoropoulos, Theodoros ; Zdun, Uwe.
Pattern Languages of Programs, People and Practices: 30th European Conference, EuroPLoP 2025, Irsee, Germany, July 2–6, 2025, Revised Selected Papers, Part. Springer Nature, 2025. (Lecture Notes in Computer Science).

Publications: Contribution to book › Contribution to proceedings › Peer Reviewed

Projects

Design-Level Vulnerabilities Identification and Fixing

Zdun, Uwe (Project Lead), Ennsberger, Sylvia (Admin)

01/09/2026 31/08/2029

Not started

Bridging SW Engineering, MLOps, and Operational Agents: Foundations for Agentic AI in Cyber-Physical Systems

Zdun, Uwe (Project Lead), Warnett, Stephen John (Scientific Project Staff), Ennsberger, Sylvia (Admin)

01/04/2026 31/03/2029

Active

Continuous Quality Control for Continuous Delivery

Zdun, Uwe (Co-Lead), Hoorn, André van (Co-Lead), Urdih, Francesco (Scientific Project Staff), Theodoropoulos, Theodoros (Scientific Project Staff), Ennsberger, Sylvia (Admin)

01/10/2024 30/09/2027

Active

MLOps for Distributed Intelligent Cyber-physical Systems

Zdun, Uwe (Project Lead), Ntentos, Evangelos (Scientific Project Staff), Warnett, Stephen John (Scientific Project Staff), Fang, Zhizhou (Scientific Project Staff), Chowdhary, Deepansha (Scientific Project Staff), Urdih, Francesco (Scientific Project Staff), Amiri, Amirali (Scientific Project Staff), Ennsberger, Sylvia (Admin)

01/01/2023 31/12/2025

Finished

Architecture Guidance System for CPS

Zdun, Uwe (Project Lead), Amiri, Amirali (Scientific Project Staff), Ntentos, Evangelos (Scientific Project Staff), Ennsberger, Sylvia (Admin)

01/02/2022 31/12/2022

Finished

Infrastructure-as-code Architecture Decision Compliance

Zdun, Uwe (Project Lead), Ntentos, Evangelos (Scientific Project Staff), Simhandl, Georg (Scientific Project Staff), Quéval, Pierre-Jean (Scientific Project Staff), Ennsberger, Sylvia (Admin)

01/12/2020 30/11/2023

Finished

Adaptive Multi-Modale Netzwerkerkennung zur Informationssichtung

Zdun, Uwe (Project Lead), Warnett, Stephen John (Scientific Project Staff), Wöhrer, Alex Maximilian (Scientific Project Staff), Ennsberger, Sylvia (Admin)

01/11/2020 31/10/2022

Finished

Assurance and certification in secure Multi-party Open Software and Services

Zdun, Uwe (Project Lead), Simhandl, Georg (Scientific Project Staff), Quéval, Pierre-Jean (Scientific Project Staff), Ennsberger, Sylvia (Admin)

01/10/2020 30/09/2023

Finished

Analytics-centric Continuous Design of Microservice APIs

Zdun, Uwe (Project Lead), Genfer, Patric (Scientific Project Staff), Hörner, Nicole Elisabeth (Scientific Project Staff), El Malki, Amine (Scientific Project Staff), Simhandl, Georg (Scientific Project Staff), Ennsberger, Sylvia (Admin)

01/01/2020 31/12/2023

Finished

Foundations of DevOps and Continuous Delivery for Software Ecosystems

Zdun, Uwe (Project Lead), Ntentos, Evangelos (Scientific Project Staff), Plakidas, Konstantinos (Scientific Project Staff), Ennsberger, Sylvia (Admin)

01/04/2018 31/03/2021

Finished

Definition der systematischen Methodologie für Architektur- und Designentscheidungen bei der Entwicklung von Software Ökosystemen IV

Zdun, Uwe (Project Lead), Ennsberger, Sylvia (Admin)

01/08/2017 31/07/2018

Finished

Ensuring Compliance of Architectural Design Decisions and Implementations

Zdun, Uwe (Project Lead), Ntentos, Evangelos (Scientific Project Staff), Amiri, Amirali (Scientific Project Staff), Simhandl, Georg (Scientific Project Staff), Ennsberger, Sylvia (Admin)

01/04/2017 31/10/2020

Finished

Field Force 3

Zdun, Uwe (Project Lead), Ennsberger, Sylvia (Admin)

25/07/2016 31/10/2016

Finished

Definition der systematischen Methodologie für Architektur- und Designentscheidungen bei der Entwicklung von Software Ökosystemen III

Zdun, Uwe (Project Lead), Ennsberger, Sylvia (Admin)

01/07/2016 30/06/2017

Finished

Definition der systematischen Methodologie für Architektur- und Designentscheidungen bei der Entwicklung von Software Ökosystemen II

Zdun, Uwe (Project Lead), Ennsberger, Sylvia (Admin)

15/04/2015 30/06/2016

Finished

Field Force 2

Zdun, Uwe (Project Lead), Ennsberger, Sylvia (Admin)

15/12/2014 24/07/2016

Finished

Definition der systematischen Methodologie für Architektur- und Designentscheidungen bei der Entwicklung von Software Ökosystemen

Zdun, Uwe (Project Lead), Ennsberger, Sylvia (Admin)

01/05/2014 28/02/2015

Finished

Consistency Checking, Recommendations, And Visual Modeling For Ad Hoc Changes By Knowledge Workers In Adaptive Case Management

Zdun, Uwe (Project Lead), Ennsberger, Sylvia (Admin)

01/03/2014 31/05/2017

Finished

Field Force

Zdun, Uwe (Project Lead), Ennsberger, Sylvia (Admin)

08/11/2013 31/12/2014

Finished

Supporting Containment Checking for UML Behaviour Diagrams

Zdun, Uwe (Project Lead), Ennsberger, Sylvia (Admin)

01/01/2013 31/01/2017

Finished

Talks

Conformance Assessment and Detection Strategies in Continuously Delivered Microservice Architectures

Uwe Zdun

10th Workshop on Software Quality Analysis, Monitoring, Improvement, and Applications

Seminar/Workshop, Talk or oral contribution

12.9.2023

API Rate Limit Adoption – A pattern collection

Uwe Zdun , Souhaila Serbout

28th European Conference on Pattern Languages of Programs

Conference, Talk or oral contribution

5.7.2023 - 9.7.2023

Guiding Architectural Decision Making on Service Mesh Based Microservice Architectures

Amine El Malki , Uwe Zdun

European Conference on Software Architecture 2019

Conference, Talk or oral contribution

11.9.2019

Supporting Architectural Decision Making on Data Management in Microservice Architectures

Evangelos Ntentos , Uwe Zdun , Konstantinos Plakidas , Daniel Schall , Fei Li , Sebastian Meixner

European Conference on Software Architecture 2019

Conference, Talk or oral contribution

11.9.2019

Dynamic Data Routing Decisions for Compliant Data Handling in Service- and Cloud-Based Architectures: A Performance Analysis

Amirali Amiri , Christoph Krieger , Uwe Zdun , Frank Leymann

2019 IEEE International Conference on Services Computing (SCC)

Conference, Talk or oral contribution

13.7.2019

On the Design and Architecture of Deployment Pipelines in Cloud and Service Based Computing - A Model-Based Qualitative Study

Konstantinos Plakidas , Uwe Zdun , Evangelos Ntentos , Amine El Malki , Daniel Schall , Fei Li

2019 IEEE International Conference on Services Computing (SCC)

Conference, Talk or oral contribution

11.7.2019

Design of an Executable Specification Language Using Eye Tracking

Georg Simhandl , Philipp Paulweber , Uwe Zdun

2019 IEEE/ACM 6th International Workshop on Eye Movements in Programming (EMIP)

Seminar/Workshop, Talk or oral contribution

27.5.2019

Architecting for Frequent Release

Uwe Zdun

Talk or oral contribution

.4.2019

Interface Evolution Patterns — Balancing Compatibility and Flexibility across Microservices Lifecycles

Daniel Lübke , Olaf Zimmermann , Cesare Pautasso , Uwe Zdun , Mirko Stocker

24th European Conference on Pattern Languages of Programs 2019

Conference, Talk or oral contribution

..2019

Model-Based Support for Decision-Making in Architecture Evolution of Complex Software Systems

Konstantinos Plakidas , Uwe Zdun , Daniel Schall

Workshop on distributed software development, software ecosystems and systems-of-systems (WDES@ECSA 2018)

Seminar/Workshop, Talk or oral contribution

24.9.2018 - 28.9.2018

Software Migration and Architecture Evolution with Industrial Platforms: A Multi-Case Study

Uwe Zdun , Konstantinos Plakidas , Daniel Schall

European Conference on Software Architecture 2018

Conference, Talk or oral contribution

24.9.2018 - 28.9.2018

Design Patterns for Smart Contracts in the Ethereum Ecosystem

Alex Maximilian Wöhrer , Uwe Zdun

IEEE International Conference on Blockchain

Conference, Talk or oral contribution

30.7.2018 - 3.8.2018

A Pattern Language for Manual Analysis of Runtime Events Using Design Models

Uwe Zdun , Michael Szvetits

23rd European Conference on Pattern Languages of Programs

Conference, Talk or oral contribution

4.7.2018 - 8.7.2018

Interface Quality Patterns — Communicating and Improving the Quality of Microservices APIs

Uwe Zdun , Mirko Stocker , Olaf Zimmermann , Daniel Lübke , Cesare Pautasso

23rd European Conference on Pattern Languages of Programs

Conference, Talk or oral contribution

4.7.2018 - 8.7.2018

The Changing Role of Software Architecting in the Digital Age

Uwe Zdun

Architekturen 2018

Lecture series, colloquium, Talk or oral contribution

19.6.2018

CASM-IR: Uniform ASM-Based Intermediate Representation for Model Specification, Execution, and Transformation

Philipp Paulweber , Uwe Zdun , Emmanuel Pescosta

International ABZ Conference ASM, Alloy, B, TLA, VDM, Z

Conference, Talk or oral contribution

5.6.2018 - 8.6.2018

Smart Contracts: Security Patterns in the Ethereum Ecosystem and Solidity

Alex Maximilian Wöhrer , Uwe Zdun

International Workshop on Blockchain Oriented Software Engineering

Seminar/Workshop, Talk or oral contribution

20.3.2018

Software Architectures and Techniques for Compliance Monitoring and Enforcement.

Uwe Zdun

Talk or oral contribution

28.11.2017

Model-Driven Support for Semi-automated Architectural Abstraction

Uwe Zdun

Talk or oral contribution

21.10.2015 - 22.10.2015

On resuable architectural knowledge

Uwe Zdun

1st International Workshop on Software Architecture Asset Decision-Making (SAADM). Co-located with the 9th European Conference on Software Architecture (ECSA)

Seminar/Workshop, Talk or oral contribution

8.9.2015