On Harmonically Combining Active, Object-Oriented, and Deductive Databases
نویسندگان
چکیده
Although there are a number of issues to resolve, active databases, object-oriented databases, and deductive databases can be smoothly integrated. We present the integration challenges, provide a resolution to the issues, and show a way to achieve this integration by describing the active, object-oriented, and deductive features of a model/language called Harmony. Harmony lets us see the integration issues in a different light, because it provides an alternative way of modeling an application. It thus lets us give an alternate solution for smoothly combining eventcondition-action rules, object orientation, and logic, that better supports the development of advanced applications.
منابع مشابه
Approaches to deductive object-oriented databases
This paper is concerned with the problem of combining deductive and object-oriented features to produce a deductive object-oriented database system which is comparable to those currently available under the relational view of data modelling not only in its functionality but also in the techniques employed in its construction and use. Under this assumption, we highlight the kinds of issues that ...
متن کاملQuery classes
Deductive object-oriented databases advocate the advantage of combining object-oriented and deductive paradigms into a single data model. Certainly, the query language in such a data model has to reeect the amalgamation because it works as the interface to the user and/or application program. This paper proposes a language to formulate queries as classes related to the schema classes and constr...
متن کاملQuery language approach based on the deductive object-oriented database paradigm
The integration of data-oriented (structural), behavioral and deductive aspects is necessary in next generation information systems. Therefore the deductive object-oriented database paradigm offers a very promising starting point for the implementation of these kinds of information systems. So far in the context of this paradigm a big problem has been the lack of a query language suitable to an...
متن کاملUpdate Control in Deductive Object Bases1
Deductive object bases are a combination of both deductive and objectoriented databases. This dissertation investigates the problem of update control for such databases. The data model is defined as an extreme case of a deductive database with only one extensional predicate and a multitude of axioms defining the object-oriented abstraction concepts. The advantages are twofold: a distinct concep...
متن کاملDeductive Object-oriented Database System
DO is a deductive object oriented database developed at the National University of Singapore The system aims to integrate de ductive and object oriented paradigms and use their advantages to over come both the paradigms respective weaknesses DO di ers from con ventional deductive object oriented databases in its key based approach for OIDs pro active approach to resolving inheritance con icts a...
متن کامل