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Schema evolution and integration
1994
Distributed and parallel databases
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This paper reflects on existing evolution support schemes and introduces a more general and functional mechanism to support schema evolution and instance adaptation for centralized and distributed object-oriented ...
The mechanism is general enough to provide much of the support necessarily for heterogeneous schema integration, as well as incorporating much of the features of object migration and replication. ...
This reemphasizes the similarities between the schema evolution problem and the schema integration problem. ...
doi:10.1007/bf01263340
fatcat:5rc5kpijbre7nmxkoq6lcurck4
Schema Evolution and Integration
[chapter]
1994
Distributed and Parallel Database Object Management
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This paper reflects on existing evolution support schemes and introduces a more general and functional mechanism to support schema evolution and instance adaptation for centralized and distributed object-oriented ...
The mechanism is general enough to provide much of the support necessarily for heterogeneous schema integration, as well as incorporating much of the features of object migration and replication. ...
This reemphasizes the similarities between the schema evolution problem and the schema integration problem. ...
doi:10.1007/978-1-4615-2746-6_5
fatcat:d6u6yfjnlzgibgefbxouanlqvi
Reduce, Reuse, Recycle : Practical Approaches to Schema Integration, Evolution and Versioning
[chapter]
2006
Lecture Notes in Computer Science
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This paper investigates each of these approaches and outlines the current research directions in schema integration, evolution and versioning. ...
Three themes are apparent in recent schema integration, evolution and versioning research. First, the need to reduce the number of schema changes that are necessary. ...
Thus in many respects, schema and data integration and schema evolution and versioning can be viewed as cognate problems in that there are multiple sources of data which are held, and which need to be ...
doi:10.1007/11908883_26
fatcat:wk3otxiwybgbjjnijmauff2aba
Update rewriting and integrity constraint maintenance in a schema evolution support system
2010
Proceedings of the VLDB Endowment
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schema and integrity constraints evolution are significantly more difficult and have thus far remained unsolved. ...
In this paper, we address this issue by introducing a formal evolution model for the database schema structure and its integrity constraints, and use it to derive update mapping techniques akin to the ...
through both structural changes of the schema and integrity constraints evolution, and (iii) a set of operators that support modeling of integrity constraint evolution, and a characterization of how integrity ...
doi:10.14778/1921071.1921078
fatcat:hzbitzrp7zcezdt42izapwwf7m
Managing source schema evolution in web warehouses
2002
Journal of the Brazilian Computer Society
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This paper presents this architecture and analyses some novel evolution cases in the context of Web DW. ...
In this work we address the effects of adding/removing/changing Web sources and data items to the Data Warehouse (DW) schema. ...
and instance mappings between web sources and the integrated global schema [15] . ...
doi:10.1590/s0104-65002002000200003
fatcat:u7und3al7vhwno7oji5zc5l56m
Special Issue on: Evolution and Versioning in Semantic Data Integration Systems
2013
Journal on Data Semantics
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Schema evolution techniques are able to represent only the current integration schema and data, i.e., historical integration schema states are lost. ...
The most eligible approaches to handling a semantic integration system evolution are based on schema evolution techniques, or on temporal extensions, or on versioning. ...
doi:10.1007/s13740-013-0020-6
fatcat:owcwpo3viff63f32ms7g2f7q6m
Evolution towards, in, and beyond object databases
[chapter]
1994
Lecture Notes in Computer Science
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The following are presented in more detail: rst, we describe the necessity o f o b j e c t e v olution over time second, we discuss schema evolution and third, we p r e s e n t e v olutionary database ...
database, integration of federated systems, and the use of \external services" to enrich DBMS functionalities. ...
Consider an ODBS schema with two classes Boys and Girls, and a schema evolution, integrating these two classes into one uni ed class Persons. ...
doi:10.1007/3-540-57802-1_4
fatcat:viytjhtnfveyle5ghf6whoag7u
A Flexible Graph-Based Data Model Supporting Incremental Schema Design and Evolution
[chapter]
2012
Lecture Notes in Computer Science
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We want to address this problem by developing a schema-optional and flexible data model that supports the integration of heterogenous and volatile web data. ...
Inspired by the on-going web 2.0 trend, we want users to participate in the design and management of the schema. ...
First, we have to define a uniform data model that enables efficient integration of structurally diverse data and flexible evolution of the schema. ...
doi:10.1007/978-3-642-27997-3_29
fatcat:qimp4oj6ardgfdwbmh3tfrjtam
An online bibliography on schema evolution
2006
SIGMOD record
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We briefly motivate and present a new online bibliography on schema evolution, an area which has recently gained much interest in both research and practice. ...
For example, data integration architectures, such as enterprise information integration (EII) and enterprise application integration (EAI), are now common and must be able to deal with schema changes for ...
We broadly assign papers within the following categories: • Database schema evolution • XML schema evolution • Ontology evolution • Software evolution and • Workflow evolution. ...
doi:10.1145/1228268.1228273
fatcat:jcafhgtpivaa5owt67ftgvecwm
Schema Evolution in Data Warehousing Environments – A Schema Transformation-Based Approach
[chapter]
2004
Lecture Notes in Computer Science
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The schemas of the data sources and the integrated database may be expressed in different modelling languages. It is possible for either the data source schemas or the warehouse schema to evolve. ...
This evolution may include evolution of the schema, or evolution of the modelling language in which the schema is expressed, or both. ...
In this paper we address the problem of schema evolution in materialised data integration scenarios, including both evolution of a source schema and of the warehouse schema, and also the impact on any ...
doi:10.1007/978-3-540-30464-7_48
fatcat:zzzswzkrh5aljbcszh3464kumq
Content Schema Evolution in the CoreMedia® Content Application Platform CAP
[chapter]
2002
Lecture Notes in Computer Science
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We propose a two-layered approach to content schema evolution consisting of a system level responsible for bookkeeping and integrity issue detection, and a semi-automatic application level responsible ...
To control the inevitable evolution of the content schema, the schema should be subject to configuration management together with the actual content. ...
A Two-Layered Approach to Content Schema Evolution Our approach to content schema evolution divides the problem into two layers: A system level responsible for storage, bookkeeping and integrity issue ...
doi:10.1007/3-540-45876-x_44
fatcat:wyppxftaurf4pk7g7oqwbjt32q
Automating the database schema evolution process
2012
The VLDB journal
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In particular, we focus on the difficult and previously unsolved problem of supporting legacy queries and updates under schema and integrity constraints evolution. ...
almost 2,000 schema evolution steps. ...
Acknowledgments The authors would like to thank Fabrizio Moroni, MyungWon Ham for their help in developing the tool, and Letizia Tanca for the great feedback and support. ...
doi:10.1007/s00778-012-0302-x
fatcat:h4z426tc2vdqtjcajex6h6winm
Facilitating Database Attribute Domain Evolution Using Mesodata
[chapter]
2004
Lecture Notes in Computer Science
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Database evolution can be considered a combination of schema evolution, in which the structure evolves with the addition and deletion of attributes and relations, together with domain evolution in which ...
We present the nature and use of mesodata as it affects domain evolution, such as when a domain changes, when the semantics of a domain alter and when the attribute's specification is modified. ...
, data warehousing, data integration and schema integration research has areas of relevance to the evolution of domains. ...
doi:10.1007/978-3-540-30466-1_39
fatcat:34xfqrjydbehvmmcwywrqfbbke
Graceful database schema evolution
2008
Proceedings of the VLDB Endowment
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As of today, schema evolution remains an error-prone and time-consuming undertaking, because the DB Administrator (DBA) lacks the methods and tools needed to manage and automate this endeavor by (i) predicting ...
Supporting graceful schema evolution represents an unsolved problem for traditional information systems that is further exacerbated in web information systems, such as Wikipedia and public scientific databases ...
This work was supported in part by NSF-IIS award 0705345: "III-COR: Collaborative Research: Graceful Evolution and Historical Queries in Information Systems-A Unified Approach". ...
doi:10.14778/1453856.1453939
fatcat:3inn5farenhzxl2wmu7ff2eguu
An XML Schema-based Semantic Data Integration
2006
2006 Fifth International Conference on Grid and Cooperative Computing (GCC'06)
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Such data integration raises challenging issues: (1) Support for multiple independently-managed schemas, (2) Ease of schema evolution, and (3) Simple schema mappings. ...
In order to address these issues, we propose a novel approach to semantic integration of scientific data which uses XML schemas and RDF-based schema mappings. ...
Such data integration is very difficult to support in traditional data management approaches [14] . Challenges for scientific data modeling and integration are: 1) Ease of Schema Evolution. ...
doi:10.1109/gcc.2006.28
dblp:conf/gcc/KimJSH06
fatcat:vkq3ovwovjduroti2s7axwvrn4
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