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ClearCase and Subversion Bridge (CC2SVN)
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ClearCase and Subversion Bridge (CC2SVN)

£1,100.00

Complete Integration between IBM Rational ClearCase and Subversion


The ClearCase to Subversion (SVN) Bridge has been developed for companies who;
  • Are transitioning from IBM Rational ClearCase to the Open Source solution Subversion (or vice versa);
  • Operate a hybrid Software Change and Configuration Management (SCCM) environment and want to integrate SCCM solutions.

Many companies recognise that IBM Rational ClearCase and Subversion (SVN) have different strengths and benefits depending on the size and complexity of each development project. The CC2SVN Bridge provides the opportunity to fully integrate IBM Rational ClearCase and Subversion meaning each development project can choose the Software Configuration Management solution which is most appropriate while continuing to share data and components with other products and programmes.

Whether transitioning between SCCM solutions, merging geographically distributed development teams, merging companies/software products into your SCCM environment or looking to allow diversity and choice within development teams, the CC2SVN Bridge allows bi-directional sharing of version controlled content (software, documentation etc.) across a Local Area Network or geographically dispersed environment.

The CC2SVN Bridge allows developers to quickly and easily transport code between the two tools, enabling one continuous integrated SCCM environment with the reduced costs associated with open source software.

Transitioning from ClearCase to Subversion (SVN)

Companies attempting to migrate from one software version control tool to another will appreciate the challenges involved in the 'big bang' approach including;
  • Full data migration (including down time, process testing, backup and recovery, post-migration support)
  • Cleanly removing tool dependencies before migration (build, policy & process, integrations, performance, etc) prior to migration
  • Defining new support and development processes
  • Educating and training for staff within tight deadlines
  • Reducing impact on delivery dates and external projects/teams

The CC2SVN bridge allows companies to perform a controlled migration within longer timescales, learning and resolving dependencies as they arise, using live data but without affecting project teams.

Hybrid SCCM development environments

Many organisations have IBM Rational ClearCase deeply embedded in their development environment, for many projects ClearCase remains the preferred SCCM tool.

Equally companies are seeking cost effective, functionally rich alternative SCCM solutions which enable projects to react quickly to new business demands. Subversion has been proved to be ideal as a tool for agile distributed development, projects are reorganising themselves away from centralised tools such as ClearCase to a distributed SCCM solution however they still understand the benefits of using ClearCase as a storage base to share code and keep regular backups. The CC2SVN Bridge provides a multisite solution between IBM Rational ClearCase and Open Source Subversion.

High level technical overview

The diagram 1 below represents the CC2SVN Bridge mapping a ClearCase data structure to an equivalent Subversion data structure. A change to a file in subversion will be transported across the CC2SVN bridge and checked in as a change in ClearCase, and vice versa.

high level cc2svn diagram

The principle of the bridge is simple, a change in one tool is mirrored across the bridge where it is automatically picked up and applied. CC2SVN abides by the rules of the corresponding tool regarding conflicts i.e. should a conflict occur, the developer is notified.

clearcase to subversion bridge
subversion to clearcase bridge

Further technical detail is available from the product documentation.

ClearCase is copyright to IBM Rational©

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