Integrating heterogeneous data sources using the COIL mediator definition langauge

Och, Christian; King, Robert B.; Osborne, Richard M.

doi:10.1145/338407.338715

Cited by 4 publications

(4 citation statements)

References 6 publications

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“…The metadata dictionary [6][7][8] stores all data descriptions and associated information of various information sources that are used by the user interface and manager. It realizes the data connection between the user interface and the manager.…”

Section: B Mediator Layermentioning

confidence: 99%

A schema of data exchange for heterogeneous data

Tian

Dong

et al. 2011

2011 2nd International Conference on Artificial Intelligence, Management Science and Electronic Commerce (AIMSEC)

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There are many difficulties in data exchanging and sharing among health and medical information systems. This paper introduces some key techniques of the solution, which include the adoption of P2P communication mode, the framework for heterogeneous data integrating and semi-structured data mapping. These techniques employ distributed data storage and XML technology, which makes the system low in cost, easy to implement and excellent in scalability.

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Section: B Mediator Layermentioning

confidence: 99%

A schema of data exchange for heterogeneous data

Tian

Dong

et al. 2011

2011 2nd International Conference on Artificial Intelligence, Management Science and Electronic Commerce (AIMSEC)

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“…Importantly, much of the core of the technology needed to build such 'Security Maintenance Mediators' is already in existence or is rapidly under development, in the form of information mediator generation facilities for standard databases [1][2][3][4][5][6][7]. The approach taken in the mediation research community has been that of developing smart wrappers defined with languages specifically tailored to traditional tuple and object data transformation and integration.…”

Section: The Goal: Minimizing Unintentional Security Breachesmentioning

confidence: 99%

Security Maintenance Mediation: a technology for preventing unintended security breaches

King

2003

Concurrency and Computation

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SUMMARYWeb-resident information is becoming 'smarter', in the sense that emerging technology will support the annotation of it with ontological terms, which will be used to locate and reuse information. This will pose a great security risk in the form of unintended breaches (as distinct from deliberate invasions). Web-resident information will be far more readily available and relevant, thus causing inadvertent releases of secure information to potentially cause it to be diffusely spread across the Internet. Then as this information is iteratively transformed and integrated with other information, it will become irretrievable and potentially used in a myriad of unpredictable ways. The problem is that ontological annotations, while making information more understandable in its original form, do not provide a means for easily capturing the complex semantics of information that has been transformed via abstraction, aggregation, and integration. This demands the development of a semantically rich way of specifying 'views' of Web information, to which security controls can be attached. Also needed is a way for users of secure information to easily and voluntarily blend-and thereby propagate-security controls as information is transformed. Information mediators designed by collaborative teams of experts are proposed as the vehicle for wrapping information, so that at each step of reuse, high-level views and their corresponding integrity controls can be made easily accessible to trusted users who will then be able to ensure their proper maintenance.

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“…COIL is a data mediator definition language that allows for the definition of data mediators on a high level of abstraction [24,31,32]. The semantics of a specific integration process are defined in a COIL mediator definition (COIL program).…”

Section: The Coil Data Mediator Definition Languagementioning

confidence: 99%

“…As mentioned earlier, the example presented is a very basic example of a COIL data mediator. A far more complex example, the Emazon online bookstore mediator, is presented in References [24,31,32].…”

Section: Coil Data Mediators-a First Examplementioning

confidence: 99%

The COIL data mediator definition language

Och¹,

Osborne²,

Todd³

et al. 2001

Concurrency and Computation

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SUMMARYModern persistent applications typically run on top of numerous (often hundreds) of distributed, heterogeneous databases. Integrating data from various data sources in order to provide uniform, homogeneous, and consistent access to the data from the underlying data sources while preserving the integrity and autonomy of preexisting data sources is a huge problem, especially in evolving environments. The main issue that a global information sharing system has to address is heterogeneity on all levels of the participating data sources: the data might be stored in heterogeneous data sources, using different data models and access/middleware technologies. Another major type of heterogeneity that has to be addressed by a global information sharing system is due to differences in the semantics of the data from the data source participating in the integration process. In particular, the resolution of potential conflicts due to structural and semantic heterogeneity of the integrated data is an essential part of the integration process performed by a data integration environment.The COIL data mediator definition language supports the definition of the integration process and its semantics on a high level of abstraction. The language provides powerful language components which can be used to resolve potential conflicts due to structural and semantic heterogeneity, and to define the integration process in general. The semantics of a specific integration process are defined in a COIL data mediator definition (COIL program). The COIL compiler uses those specifications expressed in the COIL language to generate a standard Java object which captures the semantics of the integration process defined in the COIL mediator definition. The generated Java object is called a COIL data mediator. In general, a COIL data mediator is a user-defined, customized object/component which can be used like any other normal object in the Java development environment. A COIL data mediator presents a well-defined interface which may be used to access and configure the mediator at runtime. Therefore it is possible to change the data mediator's behavior and the semantics of the integration process in general at runtime. We present a detailed description of the COIL data mediator definition language and its language components, along with a detailed discussion of how COIL data mediators are used to overcome different heterogeneity problems.

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Integrating heterogeneous data sources using the COIL mediator definition langauge

Cited by 4 publications

References 6 publications

A schema of data exchange for heterogeneous data

A schema of data exchange for heterogeneous data

Security Maintenance Mediation: a technology for preventing unintended security breaches

The COIL data mediator definition language

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