SYSE.1:9 - Consequences
The project gains a focus that is stable enough for coordinated Work and explicit enough to challenge. Related projects can share resources and evidence without being collapsed. Architecture and realization discoveries can change the project focus without being treated as late exceptions.
The cost is visible uncertainty. Several candidate referents may remain current, and the account must be revisited when a named assumption fails. That cost replaces the larger cost of optimizing an architecture or realization network for the wrong project system-of-interest.