VERSION CONTROL In addition DataStage offers version control that saves the history of all the data integration development. It preserves application components such as table definitions transformation rules and source/target column mappings within a twopart numbering scheme. Developers can review older rules and optionally restore entire releases that can then be moved to remote locations. The DataStage family of products allows developers to augment distributed objects locally as they are needed. The objects are moved in a read-only fashion so as to retain their "corporate" identity. Corporate IT staff can review local changes and "version" them at a central location. Version control tracks source code for developers as well as any ASCII files such as external SQL scripts shell command files and models. Version control also protects local read-only versions of the transformation rules from inadvertent network and machine failures so one point of failure won’t bring down the entire worldwide decision support infrastructure.
