- Business Process Modeling and Analysis
- Service-Oriented Architecture and Web Services
- Petri Nets in System Modeling
- Integrated Energy Systems Optimization
- Software Engineering Research
- Advanced Software Engineering Methodologies
- Software Engineering Techniques and Practices
- Geothermal Energy Systems and Applications
- Building Energy and Comfort Optimization
- Renewable Energy and Sustainability
- Climate Change Policy and Economics
- Energy Efficiency and Management
- Model-Driven Software Engineering Techniques
- Distributed and Parallel Computing Systems
- Cloud Computing and Resource Management
- Software Reliability and Analysis Research
- Sustainable Supply Chain Management
- Flexible and Reconfigurable Manufacturing Systems
- Social Acceptance of Renewable Energy
- Sustainable Industrial Ecology
- Semantic Web and Ontologies
- Energy, Environment, and Transportation Policies
- Electric Vehicles and Infrastructure
- Advanced Database Systems and Queries
- Environmental Impact and Sustainability
Johannes Kepler University of Linz
2012-2023
Energieinstitut an der Johannes Kepler Universität Linz
2017-2022
Linz Center of Mechatronics (Austria)
2018
IBM (Germany)
2006-2017
IBM (United States)
2007-2010
Software (Germany)
2008
Technische Universität Ilmenau
2003
Swinburne University of Technology
2002
Bedag Informatik (Switzerland)
2002
IBM (Canada)
2001
Cost and time estimation are difficult problems in software development projects. Software metrics tackle this problem by assuming a statistical correlation between the size of project amount effort typically required to realize it. To be useful estimating cost, metric must take into account inherent complexity system. Such have been applied with varying degrees success, but nature has changing, some assumptions behind established cost-estimation techniques slowly being invalidated. The...
<title>Abstract</title> Background In the effort of limiting global warming below 2°C and implementing EU climate targets, Austria set itself goal reaching neutrality by 2040 [1]. With 23 MT CO<sub>2</sub>-eq emissions per year (34% total), Austrian manufacturing industry is a major contributor. Its transition to can be achieved various options, all are associated with specific costs macroeconomic impacts. We deviate from usual method modelling most likely scenarios, but work four extreme...
The Business Process Execution Language for Web Services provides a powerful technology to aggregate encapsulated functionalities and define high-value services - backed by various development runtime environments of major software companies. Nevertheless, modeling composing BPEL processes is still complicated, time money consuming, errorprone activity. Formal methods like Petri nets enable the effective analysis one single process as well comparison multiple given models, generation model...
The <em xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">Business Process Execution Language for Web Services WS-BPEL</em> provides an technology to aggregate encapsulated functionalities defining high-value services. For a distributed application in B2B interaction, the partners simply need expose their provided functionality as BPEL processes and compose them. Verifying such web service based systems has been huge topic research community lately–cf....
WS-BPEL defines a standard for executable processes. Executable processes are business which can be automated through an IT infrastructure. The specification also introduces the concept of abstract processes: In contrast to their siblings, not and have parts where logic is disguised. Nevertheless, notion compatibility between such under-specified process fully specified one. Basically, this set syntactical rules that augmented or restricted by profiles. So far, there exist two profiles:...
The paradigm of Cloud computing introduces new approaches to manage IT services going beyond concepts originating in traditional service management. main goal is automate the whole management reduce costs and make tasks less error-prone. Two different paradigms are used practice: configuration model-driven latter one aims be a holistic approach for Cloud. However, both backgrounds, thus does not cover all aspects that key services. This paper presents integrating with how they can realized...
The recovery of industrial waste heat and its reuse in district heating networks can be economical for both the industry operator. While potential external use remains significant, there are already many implemented practical examples. This paper describes an Austria-wide survey companies that supply to order assess (i) initiation implementation, (ii) business model design, (iii) risks uncertainties associated with cooperation. Based on results, good personal relationships essential, local...
Existing district heating networks (DHNs) are often designed for relatively high temperatures, typically 80–120 °C supply and 40–60 return. The transformation of such high-temperature DHNs (HTDHNs) into more efficient low-temperature (LTDHN) towards the 4th generation is associated with great complexity effort. This paper discusses integration sub-LTDHNs return flow existing HTDHNs, thereby creating an energy cascade thus lowering overall system temperatures HTDHN. technical barriers drivers...
As the legal framework is designed for an established energy regime, innovative solutions transition often encounter barriers. Since rapid changes in may involve uncertainties, testing exceptional of regulatory sandboxes can be a constructive instrument innovation policy. Until June 2021, Austrian law contains neither explicit authorisation to grant such exemptions nor custom-made sandboxes. This paper first investigate practical need Austria (specific fields experimentation were identified)...