Guidance for deploying Rational Team Concert into an existing Rational ClearCase environment
IBM Rational Team Concert (RTC) provides various types of integration capabilities: the synchronizer, the importer, and the bridge. The integration is not a one-size-fits-all and you may need help with deciding which integration capability best suits your current deployment or your future deployment plan. The information below provides a brief overview about the integration capabilities. Additional "Getting Started" information and "Quick Tour" videos are available in the Rational Team Concert and Rational ClearCase integration cookbook topic in the deployment wiki on Jazz.net.
Rational ClearCase Bridge
The Rational ClearCase Bridge provides a traceability link from Rational ClearCase artifacts to work items in Rational Team Concert. This is primarily for a customer who wants to continue to use Rational ClearCase as a source control system, but also wants to take advantage of Rational Team Concert features such as agile planning, dashboards, etc. You do not have to change your current usage of Rational ClearCase, but you can enhance your Rational ClearCase deployment by using Rational Team Concert in a complementary fashion.
Developers can associate UCM activities or base Rational ClearCase versions to Rational Team Concert's work items. You can then navigate from one to the other in the developer IDE. Because a Rational Team Concert work item is used as the "glue" for all development lifecycle artifacts, it provides end-to-end traceability throughout the development life-cycle, from project planning to source code changes.
Rational ClearCase Version Importer
The Rational ClearCase Version Importer (new in Rational Team Concert 4.0.5) is a one-way data replication tool from Rational ClearCase to Rational Team Concert source control. You can migrate all the versions in any branches in Rational ClearCase in a single operation, and the version branching is also replicated in Rational Team Concert source control. The importer also preserves the checked-in user information.
It can also import Rational ClearCase view configurations as Rational Team Concert baselines since the version 4.0.6.
You can use the version importer for both Base ClearCase and UCM ClearCase, but it does not import UCM metadata.
Rational ClearCase Synchronizer and Baseline Importer
The Rational ClearCase Synchronizer is a two-way data replication between Rational ClearCase and Rational Team Concert source control. You can choose a UCM stream or a Rational ClearCase branch to set up synchronization with a stream of Rational Team Concert source control. It leverages the Jazz Team Build, and you can run the synchronization on a scheduled basis or by request. This provides flexibility to enterprise customers by allowing a subset of teams to choose SCM tools to work with, while letting you manage all of the latest source code through a single SCM repository.
The Rational ClearCase Baseline Importer is a one-way data replication from Rational ClearCase to Rational Team Concert source control. Like the synchronizer, you can choose a UCM stream where all baselines or only selected baselines are imported, or you can choose to import label types for base Rational ClearCase. It also leverages the Jazz Team Build, so you can run the import of new baselines/label types on a scheduled basis or by request.
Version Importer or Baseline Importer?
There are two migration tools available - the Version Importer and the Baseline Importer. You can choose either of the technology that fits to your requirements to migrate the data from Rational ClearCase to Rational Team Concert source control.
The Version Importer is a new tool to allow you to import all the version histories from Rational ClearCase. You can import versions in all branches by a single operation and can import ClearCase view configurations as Rational Team Concert baselines. It has been available since Rational Team Concert 4.0.5.
The Baseline Importer migrates only the interested version ( versions selected by label types or UCM Baselines ). You have to set up the synchronized stream for branch-by-branch or stream-by-stream because it is based on the synchronizer technology. It has been available since Rational Team Concert 2.0.