In a complex system you are attempting to simplify (or deprecate components of), and where you cannot find an owner or stakeholder over some component system -- unplug the component and wait for errors or user complaints. Thus you will find out who is affected by the component and who likely stakeholders should be.
For example, old graybeards like myself will almost all have a story of finding some lost Sun or Irix server sitting under a pile of gear in an old closet, happily turned on with nobody current employed who knows anything about it.
What does it do? What's the user/password? How did it get there? all lost to the sands of time.
Turning it off will let you know if you can retire it or if somebody emerges with a problem then they can own it.
In a complex system you are attempting to simplify (or deprecate components of), and where you cannot find an owner or stakeholder over some component system -- unplug the component and wait for errors or user complaints. Thus you will find out who is affected by the component and who likely stakeholders should be.
For example, old graybeards like myself will almost all have a story of finding some lost Sun or Irix server sitting under a pile of gear in an old closet, happily turned on with nobody current employed who knows anything about it.
What does it do? What's the user/password? How did it get there? all lost to the sands of time.
Turning it off will let you know if you can retire it or if somebody emerges with a problem then they can own it.