Christian Huemer


Image
Ao.Univ.Prof. Mag.rer.soc.oec.
Dr.rer.soc.oec.

Christian Huemer

  • About: main scope: inter-organizational systems, conceptual modeling, ERP systems electronic data exchange, electronic billing
  • Orcid:
  • Keywords: Model Engineering, Electronic Data Interchange, E-Business, Service Sciences, Business Process Modeling
  • Roles: Associate Professor

Publications

Building Information Modeling in the execution phase of conventional tunneling projects
Marco HuymajerOleksandr MelnykRobert WenighoferChristian HuemerRobert Galler

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Handle: 20.500.12708/194407; Year: 2024; Issued On: 2024-04-01; Type: Publication; Subtype: Article; Peer Reviewed:

Keywords: Conventional tunneling, Drill and blast, BIM, IFC, Construction phase, Digitalization
Astract: Building Information Modeling (BIM) has become the key technology for the digital transformation of the architecture, engineering, and construction (AEC) sector. The Industry Foundation Classes (IFC), as an open and vendor-neutral data model, play an essential role in this transformation. Despite all the recent advances of BIM, tunneling needs to catch up with other AEC sectors adopting digital technologies. Currently, IFC is mainly used to capture information directly connected to the structural elements of the final tunnel but rarely as a means to document the tunnel excavation and support. This article proposes an IFC-driven process for the execution phase of conventional tunneling projects by extending the usage of IFC to information about the process, labor, equipment, and employed material. The proposed process is evaluated by a case study demonstrating how to represent data from a conventional tunneling project by IFC. The results show that IFC provides the necessary concepts to express the data of the execution phase of conventional tunneling projects. Implementing an IFC-driven process in this phase significantly contributes to the digital transformation of tunneling projects.

Huymajer, M., Melnyk, O., Wenighofer, R., Huemer, C., & Galler, R. (2024). Building Information Modeling in the execution phase of conventional tunneling projects. Tunnelling and Underground Space Technology, 146, 1–15. https://doi.org/10.1016/j.tust.2023.105539
IFC concepts in the execution phase of conventional tunneling projects
Marco HuymajerGalina PaskalevaRobert WenighoferChristian HuemerAlexandra Mazak-Huemer

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Handle: 20.500.12708/192936; Year: 2024; Issued On: 2024-01-01; Type: Publication; Subtype: Article; Peer Reviewed:

Keywords: BIM, Construction phase, Digitalization, Equipment, IFC, Labor, Material, Process, Tunneling
Astract: The documentation process of conventional tunneling projects is time-consuming and costly. Building Information Modeling (BIM) has enabled substantial productivity gains in the Architecture, Engineering, & Construction (AEC) sector. However, BIM has only been marginally adopted in the execution phase of conventional tunneling projects. For this purpose, we propose a BIM model that facilitates fully digital and automated data exchange between project stakeholders. We use the Industry Foundation Classes (IFC) as a basis and identify concepts potentially useful to represent data from the execution phase of construction projects. We demonstrate how IFC concepts are utilized to represent a shift report of a conventional tunneling project. Thereby, we deliver a reference model as an implementation guide for software developers in this domain. This may serve as a blueprint for handling construction management data in a machine-readable format, laying the foundations for Big Open BIM in the execution phase of construction projects.

Huymajer, M., Paskaleva, G., Wenighofer, R., Huemer, C., & Mazak-Huemer, A. (2024). IFC concepts in the execution phase of conventional tunneling projects. Tunnelling and Underground Space Technology, 143, Article 105368. https://doi.org/10.1016/j.tust.2023.105368
A transformational tool to guide the transition towards an entrepreneurial university : Case study: The role of TU Wien in a growing tech-oriented spin-off environment
Alexandra NegoescuBirgit HofreiterChristian Huemer

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Handle: 20.500.12708/198294; DOI: 10.34726/hss.2024.38112; Year: 2024; Issued On: 2024-01-01; Type: Thesis; Subtype: Diploma Thesis;

Keywords: startup, spin-off, disruptive innovation, Austrian Tech-Ecosystem

Negoescu, A. (2024). A transformational tool to guide the transition towards an entrepreneurial university : Case study: The role of TU Wien in a growing tech-oriented spin-off environment [Diploma Thesis, Technische Universität Wien]. reposiTUm. https://doi.org/10.34726/hss.2024.38112
Digitalization in the Construction Industry: The Case of Documentation and Invoicing in Tunneling
Oleksandr MelnykMarco HuymajerChristian HuemerRobert Galler

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Handle: 20.500.12708/187880; Year: 2023; Issued On: 2023-07-25; Type: Publication; Subtype: Inproceedings; Peer Reviewed:

Keywords: Digital transformation, Documentation, Production, Tunneling, Software, Time measurement, Recording
Astract: The digitalization of Architecture, Engineering, & Construction (AEC), specifically the tunneling sector, often lags behind other sectors. Today's invoicing process of tunneling projects frequently involves many manual and paper-based tasks, which are error-prone and time-consuming. Accordingly, replacing this with a fully digital process, from the tunnel face to the project owner, bears high economic potential. This article proposes an integrated digital documentation system for tunnel construction management and invoicing. A month-long case study with data from a real-life construction site is conducted to test the system's suitability. The managed data are exported to commonly used enterprise resource planning (ERP) systems for invoicing and compared to actual invoicing data. The case study has shown that the proposed approach is practical and helped streamline and improve the construction documentation processes in conventional tunnel construction. The proposed solution represents an incremental contribution to the digital transformation of the AEC sector.

Melnyk, O., Huymajer, M., Huemer, C., & Galler, R. (2023). Digitalization in the Construction Industry: The Case of Documentation and Invoicing in Tunneling. In 2023 IEEE 25th Conference on Business Informatics (CBI) (pp. 1–10). IEEE. https://doi.org/10.1109/CBI58679.2023.10187588
Digitalization in the Construction Industry: The Case of Documentation and Invoicing in Tunneling
Oleksandr MelnykMarco HuymajerChristian HuemerRobert Galler

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Handle: 20.500.12708/187147; Year: 2023; Issued On: 2023-06-22; Type: Presentation; Subtype: Presentation;

Keywords: tunneling, data capture, invoicing, digitalization, documentation

Melnyk, O., Huymajer, M., Huemer, C., & Galler, R. (2023, June 22). Digitalization in the Construction Industry: The Case of Documentation and Invoicing in Tunneling [Conference Presentation]. IEEE CBI 2023, Prague, Czechia. http://hdl.handle.net/20.500.12708/187147


Teaching

Project in Computer Science 2
Semester: 2025S; Nr: 194.146; Type: PR; Hours: 4.0; Language: if required in English; View on TISS

Software Engineering
Semester: 2024W; Nr: 194.020; Type: VU; Hours: 4.0; Language: German; View on TISS

Project in Computer Science 1
Semester: 2024W; Nr: 194.145; Type: PR; Hours: 4.0; Language: if required in English; View on TISS

Project in Computer Science 2
Semester: 2024W; Nr: 194.146; Type: PR; Hours: 4.0; Language: if required in English; View on TISS

Sustainability in Computer Science
Semester: 2024W; Nr: 194.155; Type: VU; Hours: 2.0; Language: English; View on TISS


Projects

Datenanalyse-Tool für Datenauswertungszwecke - Ausbaustufe II
Name: FMA-AT4DAZ-Stufe2; Title: Datenanalyse-Tool für Datenauswertungszwecke - Ausbaustufe II; Begins On: 2024-01-01; Ends On: 2024-12-31; Context: FMA-Finanzmarktaufsicht; View Project Website

Datenanalyse-Tool für Datenauswertungszwecke - Ausbaustufe I
Name: FMA-AT4DAZ; Title: Datenanalyse-Tool für Datenauswertungszwecke - Ausbaustufe I; Begins On: 2023-12-05; Ends On: 2023-12-31; Context: FMA-Finanzmarktaufsicht; View Project Website

Erforderlichkeit einer Datenbank für Analysezwecke
Name: FMA-DB; Title: Erforderlichkeit einer Datenbank für Analysezwecke; Begins On: 2023-10-16; Ends On: 2024-01-15; Context: FMA-Finanzmarktaufsicht; View Project Website

Digitale Kompetenzen @ Parlament
Name: DKP; Title: Digitale Kompetenzen @ Parlament; Begins On: 2021-04-01; Ends On: 2021-09-30; Context: Parlamentsdirektion; View Project Website

BIM in tunnelling
Name: BIM im Tunnelbau; Title: BIM in tunnelling; Begins On: 2020-07-01; Ends On: 2023-12-31; Context: Österr. Bautechnik Veranstaltungs G; View Project Website

Innovationslehrgang zur Gestaltung der Digitalen Transformation in der Produktentwicklung und Produktion
Name: DigiTrans 4.0; Title: Innovationslehrgang zur Gestaltung der Digitalen Transformation in der Produktentwicklung und Produktion; Begins On: 2016-09-01; Ends On: 2018-11-30; Context: Austrian Research Promotion Agency (FFG); View Project Website

Sparx Systems Innovations Scheck Plus
Name: Sparx Systems InnovScheckPlus; Title: Sparx Systems Innovations Scheck Plus; Begins On: 2014-04-01; Ends On: 2015-02-16; Context: Austrian Research Promotion Agency (FFG); View Project Website

Multi-Tenant ERP System in the Cloud: A Model-Driven Approach Based on the Resource-Event-Agent Ontology
Name: REAlist; Title: Multi-Tenant ERP System in the Cloud: A Model-Driven Approach Based on the Resource-Event-Agent Ontology; Begins On: 2013-09-01; Ends On: 2015-08-31; Context: Austrian Research Promotion Agency (FFG); View Project Website

Web of Needs INfrastructure
Name: WIN; Title: Web of Needs INfrastructure; Begins On: 2012-07-01; Ends On: 2014-10-31; Context: Austrian Research Promotion Agency (FFG); View Project Website

E-business Registry Permitting Enterprise Liaisons
Name: ERPEL; Title: E-business Registry Permitting Enterprise Liaisons; Begins On: 2010-05-01; Ends On: 2013-08-31; Context: Austrian Research Promotion Agency (FFG); View Project Website

Rail track gauging Austrian Federal Railways
Name: SWITCH09; Title: Rail track gauging Austrian Federal Railways; Begins On: 2009-07-01; Ends On: 2009-08-31; Context: Berner & Mattner Systemtechnik GmbH; View Project Website

ebInterface 3.0 - electronic invoicing
Name: ebInterface 3.0; Title: ebInterface 3.0 - electronic invoicing; Begins On: 2009-01-01; Ends On: 2010-02-28; Context: Austriapro c/o Wirtschaftskammer Österrecih; View Project Website

Public Private Interoperability
Name: PPI; Title: Public Private Interoperability; Begins On: 2008-10-01; Ends On: 2011-09-30; Context: Austrian Research Promotion Agency (FFG); View Project Website

Business Semantics on top of Process Technology
Name: BSopt; Title: Business Semantics on top of Process Technology; Begins On: 2008-04-01; Ends On: 2010-09-30; Context: Austrian Research Promotion Agency (FFG); View Project Website

ebTransfer - Design and Realization of Know-How Transfer for electronic Billing based on ebInterface
Name: ebTransfer; Title: ebTransfer - Design and Realization of Know-How Transfer for electronic Billing based on ebInterface; Begins On: 2007-01-01; Ends On: 2007-11-30; Context: BM für Wirtschaft und Arbeit; View Project Website

Team

Business Informatics Group, TU Wien

Head


Team member

Henderik Proper

Univ.Prof. PhD

Professors


Team member

Dominik Bork

Associate Prof. Dipl.-Wirtsch.Inf.Univ.
Dr.rer.pol.

Team member

Christian Huemer

Ao.Univ.Prof. Mag.rer.soc.oec.
Dr.rer.soc.oec.

Team member

Gerti Kappel

O.Univ.Prof.in Dipl.-Ing.in
Mag.a Dr.in techn.

Team member

Henderik Proper

Univ.Prof. PhD

Visiting Scientists


Team member

Christiane Floyd

Hon.Prof.in Dr.in phil.

Team member

Johanna Barzen

Dr. phil.

Administration



Researchers


Team member

Syed Juned Ali

Univ.Ass. BSc MSc

Team member

Aleksandar Gavric

Univ.Ass. MEng. B.Eng.

Team member

Marion Murzek

Senior Lecturer Mag.a rer.soc.oec.
Dr.in rer.soc.oec.

Team member

Galina Paskaleva

Projektass.in Dipl.-Ing.in
Dipl.-Ing.in BSc

Team member

Marianne Schnellmann

Univ.Ass.in BSc MSc

Team member

Marion Scholz

Senior Lecturer Dipl.-Ing.in
Mag.a rer.soc.oec.

External Researchers


Team member

Markus Hafner

Gastwissenschaftl. MEng.



Team member

Marco Huymajer

Univ.Ass. Dipl.-Ing.