Model Management is a powerful approach to generic metadata management that manipulates  models and mappings between models using high-level operators. It aims at simplifying the development of metadata-intensive applications, such as data integration, software engineering, website management, or network modeling applications. Such applications manipulate a variety of 

• models (database schemas, XML schemas, UML / ER)diagrams, ontologies, etc.) and
• mappings between models (SQL view definitions, XSLT transformations,   XML-to-relational shredding specifications, ER-to-SQL DDL mappings, etc.).  

Model Management is a powerful approach to generic metadata management not limited to a specific language or application domain.  Models and mappings are manipulated using high-level algebraic operators, such as Match, Merge, or Compose. These operators are applied to models and mappings as a whole rather than to their individual building blocks. This approach, which was proposed by Phil Bernstein et al., promises to make the programming of metadata-intensive applications substantially easier.

Some of our key contributions are:

• Study of scenarios related to data warehousing to demonstrate the usefulness of model management (ER 2000)
• Development of the first prototype implementation of a complete programming environment for model- management, called Rondo, and its use to solve several realistic metadata problems (SIGMOD 2003). An executable demo of Rondo is available for download. 

Project members

• Prof. Dr. Erhard Rahm
• Hong Hai Do
• Sergey Melnik

Publications

Ayala, Daniel; Hernández, Irma; Ruiz, David; Rahm, Erhard LEAPME: Learning-based Property Matching with Embeddings Arxiv 2010.01951 2020-10

Rahm, Erhard The Case for Holistic Data Integration Proc. ADBIS, Invited keynote paper, Springer LNCS 9809 2016-09

Arnold, Patrick; Rahm, Erhard SemRep: A Repository for Semantic Mapping BTW 2015 2015-03

Raunich, Salvatore; Rahm, Erhard Target-driven Merging of Taxonomies with ATOM Information Systems, Vol. 42, June 2014 2014-06

Arnold, Patrick; Rahm, Erhard Semantic Enrichment of Ontology Mappings: A Linguistic-based Approach Proc. 17th ADBIS Conference. LNCS 8133, pp. 42-55 2013-09

Arnold, Patrick Semantic Enrichment of Ontology Mappings: Detecting Relation Types and Complex Correspondences 25. GI-Workshop Grundlagen von Datenbanken 2013

Massmann, Sabine; Raunich, Salvatore; Aumueller, David; Arnold, Patrick; Rahm, Erhard Evolution of the COMA Match System OM-2011 (The Sixth International Workshop on Ontology Matching, October 24th, 2011, Bonn, Germany) 2011-10

Algergawy, A.; Massmann, S.; Rahm, E. A Clustering-based Approach For Large-scale Ontology Matching Proc. ADBIS Conf. 2011, LNCS 6909, pp. 415-428 2011-09

Bernstein, P.A.; Madhavan, J.; Rahm, E. Generic Schema Matching, Ten Years Later PVLDB, 2011 (VLDB 10 Year Best Paper Award Paper) 2011-08

Peukert, E.; Eberius, J.; Rahm, E. AMC – A Framework for Modelling and Comparing Matching Systems as Matching Processes Proc. Int. Conf. on Data Engineering (Demo paper), 2011 2011-04

Raunich, Salvatore; Rahm, Erhard ATOM: Automatic Target-driven Ontology Merging Proc. Int. Conf. on Data Engineering (Demo paper), 2011 2011-04

Peukert, Eric; Rahm, Erhard Restricting the Overlap of Top-N Sets in Schema Matching Proc. EDBT workhop on New Trends in Similarity Search (NTSS 2011) 2011-03

Bellahsene, Z.; Bonifati, A.; Rahm, E. (eds.) Schema Matching and Mapping Springer-Verlag, Data-Centric Systems and Applications 2011-02

Hartung, M.; Terwilliger, J.; Rahm, E. Recent advances in schema and ontology evolution Schema Matching and Mapping, Springer-Verlag 2011-02

Rahm, E. Towards large-scale schema and ontology matching Schema Matching and Mapping, Springer-Verlag 2011-02

Algergawy, A; Nayak, R; Saake, G. Element similarity measures in XML schema matching Information Sciences, Volume 180, Issue 24, 15 Dec. 2010, Pages 4975-4998 2010-12

Peukert, E; Massmann, Sabine; König, Kathleen Comparing Similarity Combination Methods for Schema Matching GI-Workshop - Informationsintegration in Service-Architekturen 2010-09-30

Algergawy, A.; Nayak, R.; Siegmund, N.; Koppen, V.; Saake, G. Combining Schema and Level-Based Matching for Web Service Discovery 10th International Conference of Web Engineering (ICWE 2010) 2010-07

Kirsten, T.; Thor, A.; Rahm, E. Instance-based matching of large life science ontologies Proc. of 4th Intl. Workshop on Data Integration in the Life Sciences (DILS), 2007 2007-06

Do, H.-H.; Rahm, E. Matching Large Schemas: Approaches and Evaluation Information Systems, Volume 32, Issue 6, September 2007, Pages 857-885 2007

Do, Hai Hong Schema Matching and Mapping-based Data Integration Dissertation. Veröffentlich durch Verlag Dr. Müller (VDM), ISBN 3-86550-997-5, 2006

Rahm, Erhard; Bernstein, Philip A. An Online Bibliography on Schema Evolution Sigmod Record, Dec. 2006 2006

Aumueller, D.; Do, H.H.; Massmann, S.; Rahm, E. Schema and ontology matching with COMA++ SIGMOD Conference 2005-06

Melnik, S.; Bernstein P.A.; Halevy, A.; Rahm, E. Supporting Executable Mappings in Model Management Proc. SIGMOD 2005, Baltimore, June 2005 2005-06

Melnik, S. Generic Model Management: Concepts and Algorithms Springer LNCS 2967 2004

Do, H.H.; Melnik, S.; Rahm, E. Comparison of Schema Matching Evaluations Proc. Workshop Web and Databases, LNCS 2593, 2003 2003

Melnik, S.; Rahm, E.; Bernstein, P.A. Rondo: A Programming Platform for Generic Model Management, Proc. ACM SIGMOD 2003 2003

Melnik, S.; Rahm, E.; Bernstein, P.A. Developing Metadata-Intensive Applications with Rondo. Journal on Web Semantics, 2003 2003

Do, H.H.; Melnik, S.; Rahm, E. Comparison of Schema Matching Evaluations. Proc. GI-Workshop “Web and Databases”, Erfurt, Oct. 2002 2002

Do, H.H.; Rahm, E. COMA - A System for Flexible Combination of Schema Matching Approaches Proc. 28th Intl. Conference on Very Large Databases (VLDB), Hongkong, Aug. 2002 2002

Melnik, S. Generic Model Management: Experience and Open Questions. Doctoral Poster, VLDB conf. 2002, Hongkong, Aug. 2002 2002

Melnik, S.; Garcia-Molina, H.; Rahm, E. Similarity Flooding: A Versatile Graph Matching Algorithm and its Application to Schema Matching Proc. 18th International Conference on Data Engineering (ICDE), San Jose, 2002 2002

Madhavan, J.; Bernstein, P.A.; Rahm, E. Generic schema matching with Cupid Proc. 27th Intl. Conference on Very Large Databases (VLDB), Rome, Italy, Sep. 2001 2001

Rahm, E.; Bernstein, P.A. A Survey of Approaches to Automatic Schema Matching VLDB Journal 10 (4) 2001

Rahm, E.; Bernstein, P.A. On Matching Schemas Automatically Techn. Report 1/2001. Dept. of Comp. Science, Univ. of Leipzig, Feb. 2001 2001

Bernstein, P.A.; Rahm, E. Data Warehouse Scenarios for Model Management Proc. 19th Int. Conf. on Entity-Relationship Modelling, Oct. 2000, LNCS, Springer 2000

Rahm, E.; Do, H.H. Data Cleaning: Problems and Current Approaches IEEE Techn. Bulletin on Data Engineering, Dec. 2000 2000

Müller, R.; Stöhr, T.; Rahm, E. An Integrative and Uniform Model for Metadata Management in Data Warehousing Environments. Proceedings Workshop on Design and Management of Data Warehouses (DMDW’99), Heidelberg, June 1999 1999

Related Panel

Bernstein, P.A., Is Generic Data Management Feasible? Panel discussion, Proc. VLDB 2000, pp. 660-662