System and method for aggregating distributed data

• US 6,148,298 A
• Filed: 12/23/1998
• Issued: 11/14/2000
• Est. Priority Date: 12/23/1998
• Status: Expired due to Fees

• Current Assignee: ChannelPoint Inc.
• Original Assignee: ChannelPoint Inc.
• Inventors: LaStrange, Thomas Eric, Hammontree, Monty Lee
• Primary Examiner(s): Black, Thomas G.
• Assistant Examiner(s): LE, UYEN T
• Application Number:
  US09/220,968
• Time in Patent Office: 692 Days
• Field of Search: 707/1-6, 707/8, 707/10, 707/104
• US Class Current: 1/1
• CPC Class Codes: G06F 16/951 Indexing; Web crawling techniques
• CPC Class Codes: G06F 16/953 Querying, e.g. by the use of web search engines
• CPC Class Codes: H04L 67/1001 for accessing one among a plurality of replicated servers
• CPC Class Codes: Y10S 707/99931 Database or file accessing
• CPC Class Codes: Y10S 707/99933 Query processing, i.e. searching
• CPC Class Codes: Y10S 707/99935 Query augmenting and refining, e.g. inexact access

Abstract

A method for aggregating distributed information from a plurality of data sources each having an address. A plurality of user criteria are received and site specific information describing idiosyncrasies of each data source are stored. A plurality of query messages are generated based upon the received criteria and the stored idiosyncrasy information. For each query message, a communication packet is generated comprising the query message and an address for the corresponding data source. A plurality of communication ports are created with each port associated with one of the communication packets. Each communication packet is sent over its associated port to the addressed data source.

Claims

1. A method for aggregating distributed information comprising:

identifying a plurality of data sources each having an address;

storing site specific information describing idiosyncrasies of each data source;

receiving a plurality of user criteria including information relating to a target data source;

generating a plurality of query messages to a plurality of data sources based upon the received criteria and the stored idiosyncrasy information, wherein at least one of the plurality of data sources is a non-target data source;

for each query message, generating a communication packet comprising the generated query message and an address for the corresponding data source;

creating a plurality of communication ports with each port associated with one of the communication packets; and

sending each communication packet over its associated port to the addressed data source.

2. The method of claim 1 further comprising the step of:

receiving a plurality of responses to the communication packets where each received response is associated with one of the communication ports wherein each response is received in a format defined by the data sources.

3. The method of claim 2 further comprising:

extracting from each response a set of information corresponding to that response; and

reformatting each extracted set of data using the stored idiosyncrasy information.

4. The method of claim 3 further comprising a step of performing a fuzzy match on the reformatted data to create associations between data returned by a number of the plurality of data sources.

5. The method of claim 1 wherein at least some query messages result in the generation of a plurality of communication packets.

6. The method of claim 1 wherein the sending is done such that a number of the communication packets are sent in parallel.

7. The method of claim 1 wherein the idiosyncratic information comprises information describing query syntax.

8. The method of claim 1 wherein the idiosyncratic information comprises information describing access syntax.

9. The method of claim 1 wherein the idiosyncratic information comprises information describing return data format of the data source.

10. The method of claim 1 wherein the idiosyncratic information comprises information describing searchable data fields within the data source.

11. The method of claim 1 wherein the step of generating query messages comprises generating an independent query message for each criterion specified for each data source.

12. A computer implemented method of retrieving data from a plurality of data sources comprising the steps of:

identifying a plurality of addressable data sources;

in response to receiving user-supplied search criteria, selecting from the plurality of data sources a set of target data sources specified by the user criteria;

in addition to the target data sources, selecting at least one non-target data source from the plurality of data sources where the non-target data source is not directly required by the user-specified criteria;

performing a data transaction with each of the selected target and non-target databases, the transactions resulting in a plurality of data records being returned from the data sources; and

performing a matching operation on the returned records to create a logical record comprising information from both the target and non-target data sources.