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Summary: Understanding Expressions of Unwanted Behaviors in Open Bug Reporting
Parmit K. Chilana, Andrew J. Ko and Jacob O. Wobbrock
The Information School, DUB Group, University of Washington
{pchilana, ajko, wobbrock}@uw.edu
Abstract
Open bug reporting allows end-users to express a vast
array of unwanted software behaviors. However,
users' expectations often clash with developers'
implementation intents. We created a classification of
seven common expectation violations cited by end-
users in bug report descriptions and applied it to 1,000
bug reports from the Mozilla project. Our results show
that users largely described bugs as violations of their
own personal expectations, of specifications, or of the
user community's expectations. We found a correlation
between a reporter's expression of which expectation
was being violated and whether or not the bug would
eventually be fixed. Specifically, when bugs were
expressed as violations of community expectations
rather than personal expectations, they had a better
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