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Understanding Sequence and Reply
Relationships within Email Conversations:
A Mixed-Model Visualization
January 1, 2003
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BibTex
Authors

Gina Venolia

Carman Neustaedter
Publication Type
TechReport
Pages
9
Number
MSR-TR-2002-102
Publisher
Association for Computing Machinery, Inc.
Copyright © 2002 by the Association for Computing Machinery, Inc. Permission to make
digital or hard copies of part or all of this work for personal or classroom use is granted without
fee provided that copies are not made or distributed for profit or commercial advantage and that
copies bear this notice and the full citation on the first page. Copyrights for components of this
work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy
otherwise, to republish, to post on servers, or to redistribute to lists, requires prior specific
permission and/or a fee. Request permissions from Publications Dept, ACM Inc., fax +1 (212)
869-0481, or permissions@acm.org. The definitive version of this paper can be found at
ACM’s Digital Library –http://www.acm.org/dl/.

Abstract

Related Info
Abstract
It has been proposed that email clients could be improved if they presented messages grouped
into conversations. An email conversation is the tree of related messages that arises from the use
of the reply operation. We propose two models of conversation. The first model characterizes a
conversation as a chronological sequence of messages; the second as a tree based on the reply
relationship. We show how existing email clients and prior research projects implicitly support
each model to a greater or lesser degree depending on their design, but none fully supports both
models simultaneously. We present a mixed-model visualization that simultaneously presents
sequence and reply relationships among the messages of a conversation, making both visible at a
glance. We describe the integration of the visualization into a working prototype email client. A
user study indicates that the system meets our usability goals and verifies that the visualization
fully conveys both types of relationships within the messages of an email conversation.
Related Info
Related Files
 tr-2002-102.doc
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