Creating components for storing baseline dependencies
After you create the PVOB, you can create components whose sole function is to store baseline dependencies. If you create components without a VOB root directory, nobody can create elements in the components. A component that has no VOB root directory cannot store its own elements. Although you can store baseline dependencies and elements in the same component, it is cleaner to dedicate components for storing baseline dependencies. For the most configuration flexibility, use pure composite baselines in the project. To use pure composite baselines, create components without a VOB root directory.
You can also use a pure composite baseline to represent the project configuration. Use one top-level pure composite baseline that selects the baselines of all components in the project, either directly or indirectly through other composite baselines. Using a pure composite baseline to represent the project is easier than keeping track of a set of baselines, one for each component.
After you create components without a VOB root directory, you can create components for storing elements.