“Introduction To Subversion”
Open Source Version Control System
( Beginner Level)
What Will I Cover In This Presentation
1.Introduction To Version Control System.
2.Why Do We need a Version Control System.
4.Using Subversion with User Prospective.
6.Q and A
Introduction To Version Control
what is version control system?
a).Version control system is the management of changes to
documents, programs, and other information stored as computer files.
b).It is most commonly used in software development, where a team
of people may be changing the same files.
c).Changes are usually identified by a number or letter code, termed
the "revision number", "revision level", or simply "revision". For
example, an initial set of files is "revision 1". When the first change is
made, the resulting set is "revision 2", and so on.
d).Each revision is associated with a timestamp and the person
making the change. Revisions can be compared, restored, and with
Why Do We Need Version Control System
a).coders from all over world contributing on a single project at same time.
b).Monitoring is needed.
c).Managing maintaining codes becomes easy.
a). It is used to maintain current and historical versions of files such
as source code, web pages, and documentation.
b).Its goal is to be a mostlycompatible successor to the widely used
Concurrent Versions System (CVS).
Who Uses Subversion
Subversion is wellknown in the open source community and is used
on many open source projects, including
1.Apache Software Foundation
Many more .....
Subversion is a centralized system for sharing information.
At its core is a repository, which is a central store of data.
The repository stores information in the form of a filesystem
hierarchy of files and directories.
Any number of clients connect to the repository, and then
read or write to these files.
By writing data, a client makes the information available to
others; by reading data, the client receives information from
The Problem of File Sharing
How will the system allow users to share information, but
prevent them from accidentally stepping on each
It's all too easy for users to accidentally overwrite each
other's changes in the
The CopyModifyMerge Solution
Each user's client contacts the project reposit
ory and creates a personal working copy.
A local reflection of the repository's files and directories.
Users then work simultaneously and independently,
modifying their private copies.
Finally, the private copies are merged together into a new,