Supporting Time-variant Artifacts in Groupware Applications
Eberhard Grummt, Alexander Lorz
2007
Abstract
Asynchronous groupware strives to provide a “shared memory” for distributed workers. However, current systems fail to keep track of changes in work and organizational structures, leading to old information being discarded instead of being archived. Especially in so called “Virtual Organizations”, where such changes happen often, being able to “go back in time” is desirable. We present a generic relational data model including operations capable of storing and querying time-variant data. The applicability of this model is discussed based on experiences with a prototypical application enabling visualization and interaction with respective information.
References
- James Clifford, Curtis Dyreson, Tomas Isakowitz, Christian S. Jensen, and Richard Thomas Snodgrass. On the semantics of “now” in databases. ACM Trans. Database Syst., 22(2):171- 214, 1997.
- Andrew Frank. Spatial and Temporal Reasoning in Geographic Information Systems, chapter Different types of “times” in GIS. Oxford University Press, 1995.
- Heidi Gregersen and Christian S. Jensen. Temporal entity-relationship models - a survey. Knowledge and Data Engineering, 11(3):464-497, 1999.
- C. S. Jensen and C. Dyreson. The consensus glossary of temporal database concepts february 1998 version. 1998.
- M. R. Klopprogge. Term: An approach to include the time dimension in the entityrelationship model. In Proceedings of the Second International Conference on the Entity Relationship Approach, pages 477-512, Washington, DC, 1981.
- G. Knolmayer and T. Myrach. Zur abbildung zeitbezogener daten in betrieblichen informationssystemen. Wirtschaftsinformatik, 38:63-74, 1996.
- Abbe Mowshowitz. Virtual organization. Communications of the ACM, 40:30-37, 1997.
- Jun Rekimoto. Timescape: a time machine for the desktop environment. In CHI 7899: CHI 7899 extended abstracts on Human factors in computing systems, pages 180-181, New York, NY, USA, 1999. ACM Press.
- Richard T. Snodgrass, Ilsoo Ahn, Gad Ariav, Don S. Batory, James Clifford, Curtis E. Dyreson, Ramez Elmasri, Fabio Grandi, Christian S. Jensen, Wolfgang Kafer, Nick Kline, Krishna G. Kulkarni, T. Y. Cliff Leung, Nikos A. Lorentzos, John F. Roddick, Arie Segev, Michael D. Soo, and Suryanarayana M. Sripada. Tsql2 language specification. SIGMOD Record, 23(1):65-86, 1994.
- Fusheng Wang and Carlo Zaniolo. An xml-based approach to publishing and querying the history of databases. World Wide Web, 8(3):233-259, 2005.
Paper Citation
in Harvard Style
Grummt E. and Lorz A. (2007). Supporting Time-variant Artifacts in Groupware Applications . In Proceedings of the 4th International Workshop on Computer Supported Activity Coordination - Volume 1: CSAC, (ICEIS 2007) ISBN 978-972-8865-98-6, pages 35-44. DOI: 10.5220/0002417400350044
in Bibtex Style
@conference{csac07,
author={Eberhard Grummt and Alexander Lorz},
title={Supporting Time-variant Artifacts in Groupware Applications},
booktitle={Proceedings of the 4th International Workshop on Computer Supported Activity Coordination - Volume 1: CSAC, (ICEIS 2007)},
year={2007},
pages={35-44},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002417400350044},
isbn={978-972-8865-98-6},
}
in EndNote Style
TY - CONF
JO - Proceedings of the 4th International Workshop on Computer Supported Activity Coordination - Volume 1: CSAC, (ICEIS 2007)
TI - Supporting Time-variant Artifacts in Groupware Applications
SN - 978-972-8865-98-6
AU - Grummt E.
AU - Lorz A.
PY - 2007
SP - 35
EP - 44
DO - 10.5220/0002417400350044