System and method for composition of mappings given by dependencies
US7567943B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2004 |
| Grant date | Jul 28, 2009 |
| Priority date | — |
| Expiry date | May 10, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/211
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system that facilitates composition of schema mappings. A general algorithm is provided for composing a broad class of mappings, where one or both mappings are not functions, such as constraints between two schemas and the inverse of functions. A composition component performs composition on schema mappings of disparate data sources, which schema mappings can be expressed by at least one of full, embedded, and second-order dependencies, wherein the second-order dependencies need not be in source-to-target form. The algorithm for composition further includes a procedure that tests whether the composition algorithm will terminate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.