Christine Parent, S. S. (1998), `Issues and approaches of database integration', CACM 41(5), 166--178.  Home/Search   Document Not in Database   Summary   ACM   TOC   Related Articles   Check

....to local databases. An experiment testing feasibility is reported in which 3 different bibliography databases are integrated. 1 Introduction It is often required to integrate and analyze data from multiple sources, e.g. in ecology, sociobiology, medicine, and electronic commerce. As stated in [23, 25], increasing standardization or adoption of ad hoc standards, such as Dublin Core [5] as well as metadata standards in domains such as bibliography [4] space, astronomy, geography, environmental science [13] and ecology [24] have achieved system, syntactic, structural, and limited semantic ....

C. Parent and S. Spaccapietra. Issues and Approaches of Database Integration. Communications of the ACM, 41(5):166-178, 1998.

....data and queries across the representations. Many such applications have arisen over time and have been studied actively by the database and AI communities. One of the earliest such applications is schema integration: merging a set of given schemas into a single global schema [BLN86, EP90, SL90, PS98] This problem has been studied since the early 1980s. It arises in building a database system that comprises several distinct databases, and in designing the schema of a database from the local schemas supplied by several user groups. The integration process requires establishing semantic ....

C. Parent and S. Spaccapietra. Issues and approaches of database integration. Communications of the ACM, 41(5):166--178, 1998.

....### statements are processed in the mediator to complete the registration procedure. We conclude in Section 5, with a brief discussion and an outlook on future work. Related Work The general problem of defining a global schema over a set of local schema is not a new problem, see, e.g. SL90,PS98] In [RR97] a seven step methodology for schema integration based on semantic integrity constraints is presented; see [Tur99] for a comprehensive treatment of semantic integrity constraints in federated databases. For this paper, we focus on related research in three areas. Conceptual Schema ....

C. Parent and S. Spaccapietra. Issues and Approaches of Database Integration. Communications of the ACM, 41(5):166--178, 1998.

....and solving the conflicts in these schemas, and finally, merging export schemas into a federated one. Conflicts fall into three possible categories: syntactic, semantic and instance. Solving the conflicts occurring in heterogeneous databases has been studied in numerous references (e.g. 11] and [12]) Defining the Mappings. An analysis of the schema recovery and integration processes shows that deriving a schema from another one is performed through techniques such as renaming, translating, solving conflicts, which basically are schema transformations [8] Most data centered engineering ....

C. Parent and S. Spaccapietra, "Issues and Approaches of Database Integration", Communications of the ACM, 41(5), pp.166-178, 1998.

....design changes in E and or SE . What overall system constraints inhibit interoperability . What are the best integration strategies to be use to solve the known interoperability problems The ICAP consists of three major steps whose titles are borrowed from database integration research [16]: pre integration, correspondence identification and integration. 11 Figure 4: Integrating Component Architectures Process Pre integration: In this phase developers compare the architecture characteristics of the independent, participating software components and determine a high level ....

C. Parent and S. Spaccapietra, Issues and approaches of Database Integration. ACM 41(5): 166-178. (1998).

....and detailed plans for the implementation of the system should be in place. We use the Integrating Component Architecture Process (ICAP) to facilitate fulfilling part of the LCA requirements. The ICAP consists of three major steps whose titles are borrowed from database integration research [4]: pre integration, correspondence identification and integration. The ICAP meets part of the LCA requirements by detecting interoperability problems at the architectural level, thereby evaluating certain risks, providing an implementation guideline for overcoming those risks, and establishing a ....

C. Parent and S. Spaccapietra, Issues and approaches of Database Integration. Communications of the ACM 41(5): 166-178. (1998).

....sources. They are means to describe the semantic differences between the concepts. This different semantic description can be used to verify the completeness (and correctness) of the ontology. Examples of how semantic inter correspondences can be achieved can be found in (Naiman Ouksel 1995; Parent Spaccapietra 1998; Kashyap Sheth 1996) With respect to the requirements mentioned above we argue that an ontology can be verified if we know the semantic inter correspondences between concepts described in the ontology. The drawback of only having an ontology is that we have problems with the completeness and ....

Parent, C., and Spaccapietra, S. 1998. Issues and approaches of database integration. Communications of the ACM 41(5):166--178.

.... underway; first experiments with a preliminary (centralized, non distributed) prototype have proven the viability of the approach [KIN00] We like to emphasize that the integration problem we address is different from the problems addressed in database federation (or multidatabases) SL90, BE96, PS98] There a huge body of work has dealt with issues like schema integration, resolving conflicts and mismatches (structural, extensional, naming, etc. global query processing in the presence of local autonomy etc. Those heterogeneities are between different representations of essentially the same ....

....can often be a highly complex task and requires dealing with all of the well known integration problems from information integration in databases like structural, semantic,anddescriptive conflicts 11 (e.g. flat vs. nested relational vs. object oriented modeling, homonyms, synonyms, SL90, PS98] Thus, for complex integration tasks, a powerful declarative specification language is required, e.g. for querying and restructuring local schemas, mapping data between models and schemas, integrity checking, and knowledge inference. 4.1 The KIND Architecture For our neuroscience application ....

C. Parent and S. Spaccapietra. Issues and Approaches of Database Integration. Communications of the ACM, 41(5):166--178, 1998.

....facts. 5 InfoSleuth Multi resource Query Agents Multi resource query agents are responsible for planning and coordinating the distributed processing of oneshot queries and updates. In InfoSleuth, the issues in query processing are somewhat related to those encountered in multi database systems [17], but there are some significant differences. In multi database systems, the set of participant database systems is usually assumed to be quite static, and consequently it is possible to access them through an integrated global view for which there is a known mapping from a fixed collection of ....

C. Parent and S. Spaccapietra. Issues and approaches of database integration. Communications of the ACM, 41(5), May 1998. !www.acm.org/cacm/extension/ve598.html?

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Christine Parent, S. S. (1998), `Issues and approaches of database integration', CACM 41(5), 166--178.

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C. Parent and S. Spaccapietra. Issues and approaches of database integration. CACM, 41(5):166-178, 1998.

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C.Parent, and S.Spaccapietra, "Issues and Approaches of Database Integration ", Communications of ACM, May. 1998/Vol. 41

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Christine Parent and Stefano Spaccapietra. Issues and approaches of database integration. Communications of the ACM, 41(5):166--178, May 1998.

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C. Parent and S. Spaccapietra, "Issues and Approaches of Database Integration", Communications of the ACM, 41(5), pp.166-178, 1998.

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C. Parent and S. Spaccapietra. Issues and approaches of database integration. Communications of the ACM, 41:166-- 178, May 1998.

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C. Parent and S. Spaccapietra. Issues and Approaches of Database Integration. Communications of the ACM, 41(5):166--178, 1998.

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C. Parent and S. Spaccapietra. Issues and approaches of database integration. Communications of the ACM, 41(5):166--178, 1998.

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