Creating multiple and cascading business interpretations from raw application data using transformation layering

• US 7,853,938 B2
• Filed: 08/28/2003
• Issued: 12/14/2010
• Est. Priority Date: 10/21/2002
• Status: Expired due to Fees

• Current Assignee: LinkedIn Corporation (Microsoft Corporation)
• Original Assignee: International Business Machines Corporation
• Inventors: Melhem, Wassim, Knight, Christine N.
• Primary Examiner(s): Vu; Tuan Anh
• Application Number:
  US10/650,905
• Publication Number:
  US 20040078760A1
• Time in Patent Office: 2,665 Days
• Field of Search: 717101-116, 717/118, 717136-139, 717/148, 717/152, 709/315, 709/217, 707/101, 707/3, 707/530, 707/107, 705/40, 705/37, 715/728
• US Class Current: 717/152
• CPC Class Codes: G06F 40/143 Markup, e.g. Standard Generalized Markup Language [SGML] or Document Type Definition [DTD]
• CPC Class Codes: G06F 40/154 Tree transformation for tree-structured or markup documents, e.g. XSLT, XSL-FO or stylesheets

Abstract

An XSLT-based transformation process addresses the performance problems of ordinary XSLT transformations and provides for an efficient conversion of many sources of raw, or interpreted, application data into many different interpretations. In addition, the data may be filtered to downstream users, thus enabling the use of security measures by way of the filters.

Claims

1. A computer readable medium containing computer-executable instructions which, when performed by a processor in a computer system, cause the computer system to:

retrieve a copy of a document from a data source in response to a first request for a first version of the document from a first user and a second request for a second version of the document from a second user;

process the retrieved copy of the document at an intermediary component disposed between the data source and a first cascade of reusable platform-independent software components that generates the requested first version of the document and a second cascade of reusable platform-independent software components that generates the requested second version of the document, the intermediary component determining unneeded data from the retrieved copy of the document based on the first request and the second request and reducing a size of the retrieved copy of the document by filtering out the determined unneeded data from the retrieved copy of the document before passing the filtered copy of the document to the first cascade of reusable platform-independent software components and to the second cascade of reusable platform-independent software components;

responsive to the intermediary component processing the retrieved copy of the document to generate a filtered copy of the document, process the filtered copy of the document in the first cascade and the second cascade, wherein each component in a cascade receives a set of data from the filtered copy of the document from an upstream component, transforms the set of data by applying a stylesheet to the set of data, and outputs a transformed document to a downstream component in the cascade, wherein the transformations performed at each component in the first cascade progressively converts the copy of the document to the first version of the document requested by the first user and wherein the transformations performed at each component in the second cascade progressively converts the copy of the document to the second version of the document requested by the second user, wherein common processing for a component in the first cascade and a component in the second cascade is performed upstream of a bifurcation between the components, and wherein the first cascade and the second cascade merge back into one cascade at a point where a component in both the first cascade and in the second cascade request an identical set of data from an upstream component such that the upstream component needs only output the identical set of data once; and

output the requested first version of the document to the first user and the requested second version of the document to the second user.

2. The computer readable medium of claim 1 wherein the intermediary component determines whether to retrieve at least one additional document and combine the at least one additional document with the retrieved document based on the first request from the first user and the second request from the second user.

3. The computer readable medium of claim 2 wherein each component in a cascade requests from an upstream component a set of data from the document, receives the requested set of data from the upstream component, processes the received requested set of data by applying a stylesheet to the received requested set of data and passes the processed received requested set of data to a downstream component in response to a request for the processed received requested set of data from the downstream component.

4. The computer readable medium of claim 1 wherein security measures are implemented, said security measures specifying, based on a role of a user, an amount of a requested set of data to which said user may be exposed.

5. The computer readable medium of claim 1 wherein said stylesheet comprises an eXtensible Stylesheet Language (XSL) stylesheet used as an XSL Transformations (XSL T) stylesheet.

6. The computer readable medium of claim 5 wherein at least one component serializes a generated output.

7. The computer readable medium of claim 6 wherein at least one component uses an aggregator to compile results from different transformations.

8. The computer readable medium of claim 7 wherein at least one component uses an interpreter to give context and meaning to a subset of data provided to a user.

9. The computer readable medium of claim 1, wherein the first version of the document comprises identical information from the document as the second version of the document, and wherein the first version of the document comprises a different display of the identical information than the second version of the document.

10. A computer system for data interpretation comprising:

a processor operable to perform computer-executable instructions to retrieve a copy of a document from a data source in response to a first request for a first version of the document from a first user and a second request for a second version of the document from a second user;

process the retrieved copy of the document at an intermediary component disposed between the data source and a first cascade of reusable platform-independent software components that generates the requested first version of the document and a second cascade of reusable platform-independent software components that generates the requested second version of the document, the intermediary component determining unneeded data from the retrieved copy of the document based on the first request and the second request and reducing a size of the retrieved copy of the document by filtering out the determined unneeded data from the retrieved copy of the document before passing the filtered copy of the document to the first cascade of reusable platform-independent software components and to the second cascade of reusable platform-independent software components

responsive to the intermediary component processing the retrieved copy of the document to generate a filtered copy of the document, process the filtered copy of the document in the first cascade and the second cascade, wherein each component in a cascade receives a set of data from the filtered copy of the document from an upstream component, transforms the set of data by applying a stylesheet to the set of data, and outputs a transformed document to a downstream component in the cascade, wherein the transformations performed at each component in the first cascade progressively converts the copy of the document to the first version of the document requested by the first user and wherein the transformations performed at each component in the second cascade progressively converts the copy of the document to the second version of the document requested by the second user, wherein common processing for a component in the first cascade and a component in the second cascade is performed upstream of a bifurcation between the components, and wherein the first cascade and the second cascade merge back into one cascade at a point where a component in both the first cascade and in the second cascade request an identical set of data from an upstream component such that the upstream component needs only output the identical set of data once; and

output the requested first version of the document to the first user and the requested second version of the document to the second user.

11. The computer system of claim 10 wherein the intermediary component determines whether to retrieve at least one additional document and combine the at least one additional document with the retrieved document based on the first request from the first user and the second request from the second user.

12. The computer system of claim 11 wherein each component in a cascade requests from an upstream component a set of data from the document, receives the requested set of data from the upstream component, processes the received requested set of data by applying a stylesheet to the received requested set of data and passes the processed received requested set of data to a downstream component in response to a request for the processed received requested set of data from the downstream component.

13. The computer system of claim 10 wherein security measures are implemented, said security measures specifying, based on a role of a user, an amount of a requested set of data to which said user may be exposed.

14. A method for processing at least one original document of raw application data, comprising:

retrieving a copy of a document from a data source in response to a first request for a first version of the document from a first user and a second request for a second version of the document from a second user;

processing the retrieved copy of the document at an intermediary component disposed between the data source and a first cascade of reusable platform-independent software components that generates the requested first version of the document and a second cascade of reusable platform-independent software components that generates the requested second version of the document, the intermediary component determining unneeded data from the retrieved copy of the document based on the first request and the second request and reducing a size of the retrieved copy of the document by filtering out the determined unneeded data from the retrieved copy of the document before passing the filtered copy of the document to the first cascade of reusable platform-independent software components and to the second cascade of reusable platform-independent software components

responsive to the intermediary component processing the retrieved copy of the document to generate a filtered copy of the document, processing the filtered copy of the document in the first cascade and the second cascade, wherein each component in a cascade receives a set of data from the filtered copy of the document from an upstream component, transforms the set of data by applying a stylesheet to the set of data, and outputs a transformed document to a downstream component in the cascade, wherein the transformations performed at each component in the first cascade progressively converts the copy of the document to the first version of the document requested by the first user and wherein the transformations performed at each component in the second cascade progressively converts the copy of the document to the second version of the document requested by the second user, wherein common processing for a component in the first cascade and a component in the second cascade is performed upstream of a bifurcation between the components, and wherein the first cascade and the second cascade merge back into one cascade at a point where a component in both the first cascade and in the second cascade request an identical set of data from an upstream component such that the upstream component needs only output the identical set of data once; and

output the requested first version of the document to the first user and the requested second version of the document to the second user.

15. The method of claim 14 wherein the intermediary component determines whether to retrieve at least one additional document and combine the at least one additional document with the retrieved document based on the first request from the first user and the second request from the second user.

16. The method of claim 15 wherein each component in a cascade requests from an upstream component a set of data from the document, receives the requested set of data from the upstream component, processes the received requested set of data by applying a stylesheet to the received requested set of data and passes the processed received requested set of data to a downstream component in response to a request for the processed received requested set of data from the downstream component.

17. The method of claim 14 wherein security measures are implemented, said security measures specifying, based on a role of a user, an amount of a requested set of data to which said user may be exposed.