IBM Distinguished Engineer (2000) Honorary Doctorate, University of Crete (2015) Elected Member, Academia Europaea (2016) Fellow, Center of Integrated Quantum Science and Technology (IQST) (2019) Kurt Gödel Visiting Professor for Quantum Computing, TU Wien (2020) WSO2 Technology Fellow (2023) Honorary Professor, TU Wien (2023) Frank Leymann (25 September 1957 in Bochum) is a German computer scientist and mathematician.

He is professor of computer science at the University of Stuttgart, Germany, and director and founder of the Institute of Architecture of Application Systems (IAAS).

In 2004, he was appointed full professor of computer science at University of Stuttgart where he founded the Institute of Architecture of Application Systems.

At this time, developers were quite unfamiliar with object databases, thus, Leymann helped to create tooling to ensure proper performance of corresponding applications.

Workflow systems support companies in modeling, optimizing, and executing their business processes in computing environments.

Such modeling languages support "programming in the large " and allow splitting high-level logic of control- and data flow within an overall application from its low-level logic implementing elementary business functions; this way, workflow-based applications[4] can be created, that allow changing business processes without having to change the programs implementing individual steps of the process.

The work on the web services resource framework had already shown that elements of a computing infrastructure like hardware, operating systems etc.

[22][23][24] In order to show that pattern languages and corresponding new concepts are applicable outside of computer science, they are regularly applied in the humanities,[25] especially to the domain of films[26][27] and musicology.