Baselines

A baseline is a read-only version of a module. It captures a moment in time and preserves it until you delete the module.
The baseline includes the history of the module:
  • Information about all the attribute definitions and types that have been created, deleted, or edited since the most recent baseline.
  • Information about all the objects that have been created, deleted, or edited since the most recent baseline.
  • Information about every module session (every time the module has been opened) since it was first created.

Baselines do not include collaboration links to IBM® Engineering Requirements Management DOORS® (DOORS) objects if the links were created and stored only in an external application. For example, IBM Engineering Requirements Management DOORS Next and IBM Rational® Design Management use link discovery. Links to DOORS are stored only in the application that contains the link source and therefore are not included in baselines of DOORS modules.

DOORS stores the history information for each module in a separate file in the database. When you edit a module, DOORS opens its history file. The bigger the history file, the longer it takes to open it.

To improve performance, regularly create baselines of your modules. The history file is removed from the module, and a file that contains the baseline, together with all the history information is created. You can access the history information from the baseline.


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