- The management of changing types in an object-oriented database
...
Skarra, A
Zdonik, S
... such may be modified and shared. The effects of changing a type extend to objects of the type and to programs that use objects of the ...
Publication - cat - 06/15/2023 - 14:51 - 0 comments - 1 attachment
- Schema Evolution in Heterogeneous Database Architectures, A Schema Transformation Approach
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McBrien, P; Poulovassilis, A
Author:
...
Poulovassilis, A
Year:
...
Publication - cat - 09/13/2022 - 17:45 - 0 comments - 0 attachments
- A Unifying Framework for Version Control in a CAD Environment
... design (CAD) systems. In this paper we address a broad spectrum of semantic and operational issues in version control for a public/private distributed architecture of CAD systems. The research issues ...
Publication - cat - 07/28/2016 - 08:29 - 0 comments - 0 attachments
- Reverse engineering of relational databases: Extraction of an EER model from a relational database
... 11.7 KB
A methodology for extracting an extended Entity-Relationship (EER) model from a relational database is presented. Through a combination of data schema and data instance analysis, an EER model is ...
Publication - cat - 04/17/2013 - 13:27 - 0 comments - 1 attachment
- Ontology Versioning in an Ontology Management Framework
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Noy, Natalya Fridman; Musen, Mark A.
Author:
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As ontology development becomes a more ubiquitous and collaborative process, developers face challenges in ...
Publication - cat - 04/17/2013 - 13:05 - 0 comments - 0 attachments
- On Schema Evolution in Multidimensional Databases
... 277.31 KB
Database systems offering a multidimensional schema on a logical level (e.g. OLAP systems) are often used in data warehouse ...
Publication - cat - 04/17/2013 - 12:49 - 0 comments - 1 attachment
- Schema evolution in OODBs using class versioning
... KB
This paper describes work carried out on a model for the versioning of class definitions in an object-oriented database. ... on attributes of the previous and current version of a class definition, instances of any version of the class can be converted to ...
Publication - cat - 04/17/2013 - 12:38 - 0 comments - 1 attachment
- Quantifying Schema Evolution
... for database applications. The paper presents a method for measuring
modifications to database schemata and their consequences, by using a thesaurus tool.
Measurements of the evolution of a large-scale database application currently running in
several hospitals in ...
Publication - cat - 04/17/2013 - 10:27 - 0 comments - 0 attachments
- EXPRESS: A Data EXtraction, PRocessing, and REStructuring System
... prototype data translation system which can access a wide
variety of data and restructure it for new uses. The system is driven ... presented.
The DEFINE description is compiled into a customized PL/l program for accessing source
data. The restructuring ...
Publication - erhard - 04/17/2013 - 10:16 - 0 comments - 0 attachments
- A Model for Compound Type Changes Encountered in Schema Evolution
... 420.56 KB
Schema evolution is a problem that is faced by long-lived data. When a schema changes, existing persistent data can become inaccessible unless the ... the database maintainer can perform. We have developed a model of type changes involving multiple types. The model describes both type ...
Publication - erhard - 04/17/2013 - 10:05 - 0 comments - 1 attachment
- Updating Relational Databases through Object-Based Views
... N
Keller, A
Wiederhold, G
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The view-object model provides a formal basis for representing
and manipulating object-based views on ...
Publication - erhard - 04/17/2013 - 09:38 - 0 comments - 0 attachments
- Types of software evolution and software maintenance
... of both practitioners and researchers would be helped by a more objective and finer granularity recognition of types of software ... as actually done. To these ends, this paper proposes a clarifying redefinition of the types of software evolution and software ...
Publication - erhard - 04/17/2013 - 09:16 - 0 comments - 0 attachments
- User-Driven Ontology Evolution Management
... L
Maedche, A
Motik, B
... complexity of change management increases, thus requiring a well-structured ontology evolution process. In this paper we identify a ...
Publication - erhard - 04/17/2013 - 08:05 - 0 comments - 1 attachment
- A Transparent Schema-Evolution System Based on Object-Oriented View Technology
... 100 - 499
When a database is shared by many users, updates to the database schema are almost always prohibited because there is a risk of making existing application programs obsolete when they run against ...
Publication - cat - 04/17/2013 - 06:38 - 0 comments - 0 attachments
- Maintaining Data Warehouses over Changing Information Sources.
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Rundensteiner, Elke A.; Koeller, Andreas; Zhang, Xin
... E
Koeller, A
Zhang, X
...
Publication - cat - 04/17/2013 - 06:16 - 0 comments - 1 attachment
- Automating the transformation of XML documents
... between such documents must thus be created manually on a case-by-case basis. In this paper, we explore the problem of how to automate ... of the document transformation process. One, we propose a set of schema transformation operations that establish semantic relationships ...
Publication - cat - 04/16/2013 - 22:27 - 0 comments - 1 attachment
- A component-based framework for ontology evolution
... We describe these
different representations and propose a framework
that integrates them. We show how different representations
in ...
Publication - cat - 04/16/2013 - 21:38 - 0 comments - 1 attachment
- Management Of Schema Evolution In Databases
... 1.28 MB
This paper presents a version model which handles database schema changes and which takes evolution ... development of partial schema versions, or views of a schema. These versions are created in the same database from a common ...
Publication - cat - 04/16/2013 - 11:38 - 0 comments - 1 attachment
- Ontology Evolution: Not the Same as Schema Evolution
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Noy, N. Fridman; Klein, M. C. A.
Author:
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As ontology development becomes a more ubiquitous and collaborative process, ontology
versioning and ...
Publication - cat - 04/16/2013 - 04:49 - 0 comments - 0 attachments
- Dynamic Workflow Schema Evolution Based on Workflow Type Versioning and Workflow Migration
... M
Geppert, A
Year:
... deletion and modification of workflow types in such a way that the schema remains correct. This problem is aggravated when ...
Publication - cat - 04/16/2013 - 02:16 - 0 comments - 0 attachments
- Ontology versioning on the Semantic Web
... building blocks for the SemanticWeb,
as they provide a reusable piece of knowledge about a specific domain. However, those
pieces of knowledge are not static, but ...
Publication - cat - 04/16/2013 - 01:05 - 0 comments - 0 attachments
- Consistent evolution of OWL ontologies
... and application of ontologies in dynamic environments. A core aspect in the evolution process is the to guarantee consistency of the ... the consistent evolution of OWL ontologies. We present a model for the semantics of change for OWL ontologies, considering structural, ...
Publication - cat - 04/16/2013 - 00:27 - 0 comments - 1 attachment
- Managing Evolving Workflow Specifications
... workflow specifications which copes with the evolution of a workflow schema and the dynamic modification of workflow instances. The ... consistent configurations of the versioned entities of a workflow schema. In our workflow-specific versioning approach, the ...
Publication - cat - 04/16/2013 - 00:05 - 0 comments - 0 attachments
- Version support for engineering database systems
... multiple copies of object descriptions have to coexist in a single database. A scheme is proposed that enables users to explicitly deal with these object ...
Publication - cat - 04/15/2013 - 22:49 - 0 comments - 0 attachments
- Versions of Schema for Object-Oriented Databases
... exclusively on
versioning single design objects. In a multi-user design
environment where the schema (definition) of the design ... the
single design objects. In this paper, we propose a model
of versions of schema by extending our model of versions
of single ...
Publication - cat - 04/15/2013 - 21:05 - 0 comments - 1 attachment