Compare PureCM

Feature	Perforce	Subversion	Visual Source Safe	PureCM Professional
Project Visualisation
Familiar file and folder view
Task-Based Development supporting work item hierarchies
Ability to link work items to projects/versions/features
Assign and prioritise work items
Synchronise work items with 3rd party issue tracking tools
Share folders between projects
Visualise linked locations for shared folders
Graphical differencing tool
Annotated file history (blame)
Real-time work item status reporting
Task-based burndown and developer reports
Live checkout tracking
Uniform cross-platform GUI
Parallel Development
Branch inheritance
Automatically create feature branches
Allow for automatic feature branch updates
Customisable merge automation
Merge multiple changesets as one
Merge selected changesets only (cherry picking)
Merge tracking throughout the project hiearchy
Merge tracking on task level
Visual branch/folder diff
Private developer workspaces
Automated workspace mapping based on work item
Switch workspaces while preserving changes
Shelving
Full move-rename support across branches
Distributed Development
Out-of-the-box support for distributed development
Efficient data transfer
Support for data encryption
Proxy server to cache data for remote teams
Centralised proxy server administration
Access file history when disconnected
Define multiple changesets revisions when disconnected
Security and Interfaces
Atomic commits
Policy-based security
User/password authentication
Windows Active Directory authentication
Linux PAM authentication
Inherited and customisable permissions down to file level
Free and embedded database (e.g. SQLite)
Support for SQL Server databases
Visual administrator interface
.NET and Java APIs
Plugin manager
Command line interface
Platform Support
Mac OS X
Linux
Solaris
Windows