Sessions related to UCM:
"Virtual main" to merge back and avoid cascading
The baseline can be in development stream
Some hierarchy is possible: project stream activity. How to work on the same activity? By having a common parent activity
Limitations to large projects: complexity and performance
Performance impacts:
Impacting factor: number of modifiable components per project
Integration project: special with only one modifiable component
The perfomance problems are not solved in the next release.