Anatoly, one of my favorite bloggers in BPM, has written about the unified collaborative work environment:
1. Interoperability: one form of collaborative work initiates or calls another. [...]
2. Migration: changing the collaborative work classification over time. [...]
3. Unified tasks management: every collaboration decomposes to tasks eventually. The task content remains the same whether it comes from a project, process or case. The ?My tasks? portal should contain all tasks assigned to the performer wherever they come from.
4. Unified resources management: tasks coming from various collaboration channels usually require the same resources, i.e. people. A manager responsible for the efficient resources utilization should have the whole picture: what processes, cases and/or projects a particular employee participates in.