... to avoid the ad hoc, one-off extensions commonly employed in information systems design. Schema versioning is one of a number of related ... multiple schemata for various database related tasks. In particular, schema versioning, and its weaker companion, schema evolution, ...
Publication - cat - 01/19/2018 - 18:11 - 0 comments - 0 attachments
... management systems (OODBMS) have enormous advantages in comparison to relational systems in modeling highly complex and dynamic application scenarios. Still they lack ...
Publication - cat - 04/17/2013 - 13:16 - 0 comments - 0 attachments
... validation. These criteria are important to be considered in designing reverse engineering methods, so that they can perform reverse ...
Publication - cat - 04/17/2013 - 08:27 - 0 comments - 0 attachments
... version and configuration management. Most previous work in change management has dealt with flat-file and relational data; we focus on hierarchically structured data. Since in many cases changes must be computed from old and new versions of the data, ...
Publication - huliganka - 04/17/2013 - 00:49 - 0 comments - 1 attachment
... capability of uniform manipulation of data and meta-data in relational multi-database systems. We develop a precise syntax and semantics of SchemaSQL in a manner that extends traditional SQL syntax and semantics, and ...
Publication - cat - 04/16/2013 - 18:05 - 0 comments - 1 attachment
... adaptive program? We give several intuitive explanations in common terminology. - An Adaptive program is similar to a genre. ... adaptive program, like a multipurpose mechanism, is useful in a set of related contexts. In some contexts an adaptive program does ...
Publication - cat - 04/16/2013 - 17:27 - 0 comments - 1 attachment
... is based on a classification of the constructs used in the known data model into a limited set of types Then on the basis of ... deriving \"good\" translations between schemes and more in general between models Finally we define the architecture and the ...
Publication - huliganka - 04/16/2013 - 15:49 - 0 comments - 1 attachment
... 266.26 KB In a multidatabase system, schematic conflicts between two objects are ... content at the federation level are modeled as changes in the context and the associated schema correspondences. We try to reconcile ...
Publication - admin - 04/16/2013 - 13:27 - 0 comments - 1 attachment
... schema modifications without database reorganisation in Object Oriented Database Systems. Our approach allows each user to specify ... we argue that view mechanism capabilities must be enhanced in order to be used as a uniform framework to manipulate both the schema and ...
Publication - cat - 04/16/2013 - 06:27 - 0 comments - 0 attachments
... Schema evolution occurs frequently in practice. In this paper, we show that the entire schema does not need to be redesigned ...
Publication - cat - 04/16/2013 - 05:27 - 0 comments - 0 attachments
... uniformly constraints and queries along with structures. In addition, our formalism captures schema transformations between different ...
Publication - cat - 04/16/2013 - 03:49 - 0 comments - 0 attachments
... A basic step towards flexibility in workflow systems is the consistent and effective management of workflow ... of changing existing workflows while they are operational. In this area, the most challenging issue is the handling of running instances ...
Publication - cat - 04/16/2013 - 00:38 - 0 comments - 0 attachments
