The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 19, 2003
Filed:
Sep. 01, 2000
Henk Cazemier, Nepean, CA;
Glenn D. Rasmussen, Nepean, CA;
Cognos Incorporated, Ottawa, CA;
Abstract
A query engine formulates a data source query to obtain data from one or more data sources. The query engine uses a metadata model containing model objects that represent the data sources. The metadata model has a data access layer, business layer and package layer. The model objects of the business layer are constructed based on the model objects contained in the data access layer. The query engine interacts to the metadata model at the business layer, and formulates a data source query based on a query specification provided by a client application. Thus, the query engine allows use of different type of client applications to obtain reports from one or more data sources.