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Replication Variability Based on Connection Speed

IP.com Disclosure Number: IPCOM000014546D
Original Publication Date: 2000-Jan-01
Included in the Prior Art Database: 2003-Jun-19
Document File: 2 page(s) / 46K

Publishing Venue

IBM

Abstract

Disclosed is a method of improving database replication based on dynamic conditions. Some electronic mail systems today (such as IBM's Lotus Notes) allow users to attach files to the body of the note. Often these attached files are very large in size. Also sometimes the textual content of the e-mail note is huge. Users of occasionally-connected clients to the e-mail system (e.g. laptop computers or pervasive-computing handheld devices such as PDAs) commonly need to 'synchronize' the local copy of their e-mail in-basket database when reconnecting to the e-mail system server. Such a 'replication' is often controlled with settings that allow the user to specify whether the entire content of each document should be downloaded, or just the first part of it (e.g., in the case of Lotus Notes v4.6 "summary and first 40KB of rich text"). This works pretty well in situations where the configured client is always connected at close to the same speed. However, network (e.g. Internet) transmission rates vary widely based on many factors such as number of concurrent users. It would be beneficial if the replication setting could be based on the present data transmission conditions in a dynamic fashion. Proposed: additional functionality that allows the e-mail system client user to specify variant behavior for replication based on network speed. For instance, the user might want to set up his e-mail replication based on the following:

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Replication Variability Based on Connection Speed

Disclosed is a method of improving database replication based on dynamic conditions.

    Some electronic mail systems today (such as IBM's Lotus Notes) allow users to attach files to the body of the note. Often these attached files are very large in size. Also sometimes the textual content of the e-mail note is huge.

Users of occasionally-connected clients to the e-mail system (e.g. laptop computers or pervasive-computing handheld devices such as PDAs) commonly need to 'synchronize' the local copy of their e-mail in-basket database when reconnecting to the e-mail system server. Such a 'replication' is often controlled with settings that allow the user to specify whether the entire content of each document should be downloaded, or just the first part of it (e.g., in the case of Lotus Notes v4.6 -- "summary and first 40KB of rich text"). This works pretty well in situations where the configured client is always connected at close to the same speed. However, network (e.g. Internet) transmission rates vary widely based on many factors such as number of concurrent users. It would be beneficial if the replication setting could be based on the present data transmission conditions in a dynamic fashion.

Proposed: additional functionality that allows the e-mail system client user to specify variant behavior for replication based on network speed. For instance, the user might want to set up his e-mail replication based on the fo...