This document discusses the Release History Database (RHDB) model, which integrates versioning system information from CVS with bug report data from Bugzilla. The RHDB stores extracted version and bug report data linked together. It was the first to link CVS artifacts and Bugzilla problem reports. The RHDB offers benefits for software evolution analysis by providing qualified links between changes and bugs and identifying files coupled through changes and bugs.

1. RHDB
Release History Database Model
BY: Sundas Shabbir Ahmed
Kaim Khani
Sundas Shabbir Ahmed Kaim Khani 1
Presentation of Software Evolution Topic:

2. Agenda:
In this presentation my approach for integrating versioning system
information and Bug report data and populating a RHDB.
I will First introduce
• Versioning system and Bug tracking system
(From which we retrieve data)
• Then describe the model behind RHDB.
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3.  CVS
• Is designed to handle revisions of textual information in repository
• Has been most used version control system.
• Currently it is been replaced by Subversion (SVN)
RHDB is based on Version system log file
 Versioning System
• Collect historical information of software.
• Can be applied to both CVS and SVN
• For each versioned file, the log file contains committed data
• Other data may include the version number (or revision), the timestamp,
author, the state , the number of lines added & removed, branches and the comments
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5.  Bug Report
• Bugzilla is a bug tracking system
• keep track of issues detected in the software system
• A l bug report contains the information of:
• id -status (new, assigned, reopened, resolved, verified, closed)
• resolution (fixed, invalid, wontfix, notyet, remind, duplicate, worksforme),
• product & component- operating system & the platform -short description &
list of comments
• The bug reported to the several peoples such as: reporter, assigned to-QA-,
and a list of people interested in being notified of the bug fixing progress (CC)
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8.  RHDB:
• is based on the CVS Versioning System and Bugzilla bug tracking system
Where the link between to sources are built as present in previous slide.
• Stores the extracted version & Bug report.
• was the First to link CVS artifacts an Bugzilla problem reports.
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10.  RHDB Offer Some Benefits
• for Evolution analysis
• Qualified links between changes and bugs
• Files logically coupled via changes and bugs
• Branch. Merge revision data
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11. Other approaches
• Hipikat
• softChange
• Kenyon framework
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