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ISYS

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Research Areas

Workflow-Systems

Process automation, workflow, and workflow management systems is a central research area of the ICS group. Their main contributions in this area are:

  • time management in workflow systems
  • service-based interorganizational processes
  • architecture of workflow systems
  • workflow transactions and recovery

Web-based Systems

Information and communication systems are quite frequently based on internet technologies and standarts (e.g. HTML, XML, Web Services). The research interests cover for instance data representation & exchange, communication and interoperation between business partners, web based workflow systems, and much more.

 

Temporal Data Warehouses

The ICS group developed a system for the adequate representation of dimension-changes in multi-dimensional data warehouses. Do you want to know more?

 

Requirements Engineering

This is an area of intersection of the three research groups of ISYS. We used to be members of the EU RENOIR network of excellence. Special attention is given to capturing and representing non-functional requirements.

 

Re- and Reverse-Engineering/Software Comprehension

Starting with the experiences gained during the re-engineering project CORET (which was funded by the FWF), research has been driven into the direction of software comprehension. Here, based on the identification of dynamics from within pure static code information, the PhD of D. Rauner-Reithmayer introduces methods for semantics-detection and code restructuring. The field of software comprehension is actually being extended by a comprehension framework for formal specifications (based on the PhD thesis and current research of Andreas Bollin) and a framework for rule-based systems (based on the research of Daniel Wakounig).

 

Reuse

This has been a core research area of the SESC group. Quite a number of thesis as well as apllied work have been achieved in this area.

 

• Natural Languge based Information Retrieval

This topic got into the research focus of our institute mainly by the PhD thesis of A. Bouchachia. The solutions for reuse problems and software descriptions are now applied in a broader context. The connections to other works in the field of information (retrieval) systems is obvious. Current work on this topic is done by M. Hassler in his PhD thesis.

 

Software-Evolution

Our research on software evolution is an offspring of our research on white box reuse. The implementation of service channels has been prepared in the thesis of H. Pichler.

 

Spreadsheet Quality

The quality of spreadsheets is a desideratum that hardly met research interest so far. Accordingly, quality and relevance of spreadsheet calculations are divergent. In the context of Yirsaw Ayalews dissertation a neglected tradition has been stimulated and been followed complementary by another doctoral candidate, Markus Clermont. Both works attracted international interest, not least due to the fact that a bridge to the established core competences of the institute could be build. Currently, this research area is conducted by Karin Hodnigg.

 

e-Learning

Members of the institute are engaged in furthering eLearning by helping to develop tools to support eLearning (AMEISE, mobiLearn, VeVal). But we are also active in collaborating with colleagues concentrating on didactical questions related to eLearning (PlaNet-ET) and on organizational issues (fnma-Strategieprojekt).

 

Informatics Didactics

Our focus is informatics education at secondary schools. Here, curricular issues as well as didactical issues raise our interest. Key considerations are how teachers might equip pupils with a relatively stable foundation in a highly dynamic discipline and how they can help pupils to master the challenges of an inherently technical discipline which necessarily comprises also constructive elements.

 

Interaction Support

This research topic deals with low level interaction tasks in HCI, such as point-and-click and menu selection tasks. Various aspects of these basic interaction tasks (e.g., the devices used for the execution of the tasks, the time it takes to perform them, and the problems which might occur during the execution) are studied in order to build a knowledge base upon which new interaction mechanisms can be developed, which in turn are designed to support the user during the execution of the low level interaction tasks.

 

Infrastruktur für kontextabhängige Informationssysteme

Durch die Zunahme mobiler Endgeräte (PDA, Mobiltelefon etc.) entsteht das Bedürfniss nach Kontextabhängigkeit der Benutzerschnittstelle von Informa-tionssystemen, sodass Dimensionen wie geographische Position ("location based computing") und Zeit der Benutzung, soziale Rolle der Benutzer usw. im Zuge der Interaktion berücksichtigt werden. Ziel diese Projekts ist die Konzeption und prototypische Entwicklung softwaretechnischer Infrastruktur zur effizienten Realisierung derartiger Informationssysteme.

 

Usability Engineering

Sowohl heuristische als auch empirische Analysen von Benutzungsschnitt-stellen bzw. von deren Entwürfen dienen zur frühzeitigen Optimierung der Akzeptanz von Softwareprodukten. Unsere Arbeiten auf diesem Gebiet betreffen die Analyse konkreter Benutzungsschnittstellen, die Entwicklung solcher Heuristiken, die den Aufwand der empirische Beurteilung reduzieren können, sowie die Dokumentation von Heuristiken für Reuse-Zwecke in Form von sogenannten "Usability Patterns".

 

 
 
 
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