ICS – project BBMRI.at – publication “Metadata Quality for Biobanks”

The research paper “Metadata Quality for Biobanks“, written by the ICS – BBMRI.at project group members Dr. phil. Volodymyr Shekhovtsov and O.Univ.-Prof. Dipl.-Ing. Dr. Johann Eder, is available on the following link:


The paper “Metadata Quality for Biobankshas been published in applied sciences on the 23th of September 2022 and is available as free full-text on the link over it.


The mission of biobanks is to provide biological material and data for medical research. Reproducible medical studies of high quality require material and data with established quality. Metadata, defined as data that provides information about other data, represents the content of biobank collections, particularly which data accompanies the stored samples and which quality the available data features. The quality of biobank metadata themselves, however, is currently neither properly defined nor investigated in depth. We list the properties of biobanks that are most important for metadata quality management and emphasize both the role of biobanks as data brokers, which are responsible not for the quality of the data itself but for the quality of its representation, and the importance of supporting the search for biobank collections when the sample data is not accessible. Based on an intensive review of metadata definitions and definitions of quality characteristics, we establish clear definitions of metadata quality attributes and their metrics in a design science approach. In particular, we discuss the quality measures accuracy, completeness, coverage, consistency, timeliness, provenance, reliability, accessibility, and conformance to expectations together with their respective metrics. These definitions are intended as a foundation for establishing metadata quality management systems for biobanks.


Keywords: metadata; data quality; biobank; quality metrics

The 34rd International Conference on Advanced Information Systems Engineering (CAiSE) was organized in Leuven, Belgium by the KU Leuven and the University of Ghent from June 5-10, 2022.

Franziska Hollauf, BSc. presented the paper Time-Cost Tradeoffs for Composed Services. A video recording of the presentation is available here:

Hollauf, Franziska S., Marco Franceschetti, and Johann Eder. „Time-Cost Tradeoffs for Composed Services.“ International Conference on Advanced Information Systems Engineering. Springer, Cham, 2022.


Time and cost are crucial criteria in Service Level Agreements. Frequently, the time when and how long a service can be provided or used and the cost for utilizing a service are related and hence users are confronted with a trade-off between time and cost. Besides the fundamental direct and indirect proportional relationship between time and cost, composed services might also have more complex non-monotonic relationships. We introduce a novel way of expressing the trade-offs between time and cost in form of TC-Maps as a set of piece-wise linear functions. For calculating the duration, cost and their relation for service compositions, we introduce specific operations used in a bottom-up procedure resulting in an overall TC-Map. The proposed structure allows us to derive the minimum cost of a composed service given a duration limit, or for analyzing possible durations for a provided budget. TC-Maps offer the basis for optimizing the utilization of composed services according to user preferences, resources and objectives.

ICS @ Lange Nacht der Forschung 2022

Wir haben dieses Jahr bei der LNDF 2022 teilgenommen. Als eines der größten wissenschaftlichen Events ist die LNDF eine prägende und repräsentative Veranstaltung für Jung und Alt. Sie macht Wissenschaften verschiedenster Bereiche der Gesellschaft zugänglich und sichtbar. Ebenso werden komplexe wissenschaftliche Thematiken in der Praxis dargestellt und mit Beispielen und Experimenten einem breitem Publikum näher gebracht. Hier geben wir Ihnen einen kleinen Einblick in unseren Beitrag:

Richtiges Timing: Geht sich das alles aus?

Thema: Digitalisierung

Zeitliche Einschränkungen wie Deadlines sind Teil von fast jeder Aufgabe. Wenn Geschäftsprozesse automatisiert sind, ist es essenziell, dass eines nach dem anderen zeitgerecht abgearbeitet werden kann. Wir zeigen ein Tool, mit dem sich Prozesse besser planen lassen, und wie es auch ein Feedback geben kann: „Das geht sich nicht aus!“ Bei uns können Sie ein Zeit-Problem selbst in Form eines Quiz lösen!


ICS – Präsenation @ IEEE SCC 2021

Vom 05.-11. September 2021 findet die IEEE International Conference on Services Computing (IEEE SCC 2021) als virtuelle Veranstaltung statt.  Franziska Selina Hollauf, BSc, die bei der IKS-Forschungsgruppe von O. Univ.-Prof. Dipl.-Ing. Dr. Johann Eder mitarbeitet, wird dabei die Arbeit „Towards Representing Time-Cost Tradeoffs for Service Compositions“ vorstellen.