... and database systems is that they change. Moreover, in so doing they evolve, although the manner and quality of this evolution is highly dependent on the mechanisms in place to handle it. While changes in data are handled well, changes in other ...
Publication - cat - 01/19/2018 - 18:53 - 0 comments - 0 attachments
... and then produces a transformer that can update data in a database to correspond to a newer version of the schema. (no paper ...
Publication - erhard - 04/17/2013 - 10:05 - 0 comments - 1 attachment
... provide high level quality of data and quality of service. In the DWQ project we have proposed an architectural framework and a repository ... metadata which describes all the data warehouse components in a set of metamodels to which is added a quality metamodel, defining for each ...
Publication - cat - 04/17/2013 - 05:27 - 0 comments - 1 attachment
... http://tumb1.biblio.tu-muenchen.de/publ/diss/in/2000/blaschka.pdf Citations: ... Processing)deploy the multidimensional data model in order to describe the application domain. Consequently, OLAP systems are ...
Publication - cat - 04/16/2013 - 18:16 - 0 comments - 1 attachment
... 177.63 KB In this paper a semantic approach for the specification and the management of ... reasoning tasks can be supported, based on an encoding in description logics. (cs.man.ac.uk, deis.unibo.it) ...
Publication - cat - 04/16/2013 - 16:27 - 0 comments - 1 attachment
... is achieved by encapsulating the instance adaptation code in aspects - ions introduced by aspect-oriented programming to localise ...
Publication - cat - 04/16/2013 - 16:16 - 0 comments - 1 attachment
... 78.24 KB Researchers in the ontology-design field have developed the content for ontologies in many domain areas. Recently, ontologies have become increasingly common on ... WorldWide Web where they provide semantics for annotations in Web pages. This distributed nature of ontology development has led to a ...
Publication - admin - 04/16/2013 - 16:16 - 0 comments - 1 attachment
... Adaptability has become one of the major research topics in the area of workflow management. Todays workflow management systems have ... workflow processes or the workflow process is supported in a rigid manner, i.e. changes are not allowed or handled outside of the ...
Publication - cat - 04/16/2013 - 12:05 - 0 comments - 1 attachment
... and database systems is that they change. Moreover, in so doing they evolve, although the manner and quality of this evolution is highly dependent on the mechanisms in place to handle it. While changes in data are handled well, changes in other ...
Publication - cat - 04/16/2013 - 11:38 - 0 comments - 1 attachment
... applications we must solve the data mapping problem in which a source (legacy) database is mapped into a different, but fixed, ... We describe the use of the value correspondence framework in Clio, a prototype tool for semi-automated schema mapping, and present an ...
Publication - massmann - 04/16/2013 - 10:49 - 0 comments - 1 attachment
... systems, the generation of structured web pages from data in database systems, or the integration of systems with different native data ... at the deferred execution approach for schema evolution in an effort to improve availability of the system, to the best of our ...
Publication - cat - 04/16/2013 - 07:49 - 0 comments - 1 attachment
... are allowed to block any type of transactions. We show in this paper a method to handle schema changes which is based on a ... any transactions. A nice feature of the method presented in this paper is that it is easy to integrate into an already existing ...
Publication - cat - 04/16/2013 - 07:16 - 0 comments - 0 attachments
... the entire history of source databases is not stored in the warehouse; the warehouse keeps enough information for its ... (i.e. non-temporal operators). Although temporal views in V are specified in a temporal algebraic query language we translate them into relational ...
Publication - huliganka - 04/16/2013 - 06:27 - 0 comments - 1 attachment
... teams of people with broad ranges of training to be in charge of the ontology development, design, and maintenance. Standard ... sometimes by people who do not have much training in knowledge representation. This process has generated needs for tools that ...
Publication - cat - 04/16/2013 - 04:27 - 0 comments - 1 attachment
... the approach, we show how to use model management in two scenarios related to loading data warehouses. The case study illustrates ...
Publication - cat - 04/16/2013 - 03:05 - 0 comments - 1 attachment
... Many uses of models involve managing changes in models and transformations of data from one model into another. These uses ... their use. We call this capability model management. In addition to making the case for model management, our main contribution is a ...
Publication - huliganka - 04/16/2013 - 02:49 - 0 comments - 1 attachment
... the myriad of possible change semantics a user may desire in the future, any pre-defined set is not sufficient. Rather we present a ... invariants, can be a very expensive re-engineering effort. In this paper we present an approach that de-couples the constraints from the ...
Publication - cat - 04/16/2013 - 02:49 - 0 comments - 1 attachment
... with multiple active instances is a complex issue. In this paper, we present an analysis of workflow changes in relation to business process change, and present a classification of ...
Publication - cat - 04/16/2013 - 01:27 - 0 comments - 0 attachments
... 583.01 KB In our emerging digital paper-less society, massive amount of information is being maintained in on-line repositories and diverse web site representations of this ... two representative sample applications with such needs. In this paper we present a database-centric approach called Re-Web that ...
Publication - cat - 04/15/2013 - 22:16 - 0 comments - 1 attachment
