Patent Number: 6,490,589

Title: System and method for rewriting queries

Abstract: A distributed directory service includes data sources (DS#1 through DS#5), index servers (IS#1, IS#2 and IS#3) and a client. The data sources generate an index of their data as well as a listing of their schema and a mapping from their schema to their index server's schema. This information is then transmitted to the index server for each data source, which repeats the process by providing an index and mapping information to its index server(s), if any.

Inventors: Weider; Chris (Everett, WA), Leach; Paul (Seattle, WA)

Assignee: Microsoft Corporation

International Classification: G06F 17/30 (20060101); H04L 29/12 (20060101); G06F 017/00 ()

Expiration Date: 12/03/2019