... on existing evolution support schemes and introduces a more general and functional mechanism to support schema evolution andinstance ... compatibility for old applications, while permitting a wider range of evolution operations. It achieves this by supporting schema ...
Publication - cat - 04/17/2013 - 12:38 - 0 comments - 1 attachment
... It is often difficult to obtain a good conceptual understanding of a legacy database, especially when there is a lack of documentation. Database ...
Publication - cat - 04/17/2013 - 08:27 - 0 comments - 0 attachments
... components. We show that data independence, which is a neglected concept in object databases, helps to avoid reorganizations in case ... and reducing schema transformations. We informally present a couple of examples to illustrate the idea of a schema transformation ...
Publication - cat - 04/17/2013 - 07:05 - 0 comments - 0 attachments
... These problems occur when the semantics of values of a particular domain change over time in ways that are not amenable to applying ...
Publication - cat - 04/17/2013 - 06:27 - 0 comments - 1 attachment
... process type level and the process instance level. If a process type is modified a new version of the respective process type schema is created. Then, at ...
Publication - cat - 04/16/2013 - 19:05 - 0 comments - 1 attachment
... S Kosky, A Year: ... transform data between heterogeneous databases arises from a number of critical tasks in data management. These tasks are complicated by ...
Publication - erhard - 04/16/2013 - 12:16 - 0 comments - 1 attachment
... is making it difficult to rapidly explore the effects of a design decision.Automating such exploration with model transformation and ...
Publication - cat - 04/16/2013 - 08:05 - 0 comments - 0 attachments
... and incremental development. On the schema level, a firm restriction in this evolution is that it can only be done by evolving class hierarchies downwards by subclassing. We show a unified approach to class evolution in object-oriented databases, where class ...
Publication - cat - 04/16/2013 - 05:27 - 0 comments - 0 attachments
... L Maedche, A Stojanovic, N ... problem solving. The problem is reduced to a graph search where the nodes are evolving ontologies and the edges ... search is guided by the constraints provided partially by a user and partially by a set of rules defining ontology consistency. In ...
Publication - cat - 04/16/2013 - 05:05 - 0 comments - 0 attachments
... Lee, AJ; Nica, A; Rundensteiner, EA Author: Lee, A Nica, A ...
Publication - cat - 04/16/2013 - 02:27 - 0 comments - 0 attachments
... across cross-platform systems and for providing a global view and understanding of business process models. However, the ... of workflow processes 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 workflow changes that dictate the scope of the problem. ...
Publication - cat - 04/16/2013 - 01:27 - 0 comments - 0 attachments
... Das, A; Wu, W; McGuinness, D Author: Das, A Wu, W ...
Publication - cat - 04/16/2013 - 01:16 - 0 comments - 0 attachments
... the extensible markup language (XML) has been emerging as a standard format for data representation on the web. In many applications, ... document type definitions (DTDs) are designed to enforce a semantically agreed-upon structure of the XML documents for management. ...
Publication - cat - 04/15/2013 - 23:49 - 0 comments - 0 attachments
