Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.
One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.
From memory, a CASE tool called SSADM Select (don't know authors) allowed you to produce state diagrams. I also think thas SSADM Systems Engineer (SE) from LBMS produced them too. I think LBMS has a new product set on the market now tho'
Cheers - MorFF